What will I learn in Chapter 2 Human Reproduction?

Related questions grouped automatically for chapter-wise practice. Topics include Human Reproduction.

How should I practice this Biology chapter?

Start with Easy MCQs, review explanations after every answer, then move to Medium, Hard and Expert timed quizzes for stronger exam preparation.

Are topic-wise questions available?

Yes, this page includes topic-wise practice such as Human Reproduction.

Class 12 General Biology Chapter 2 Human Reproduction MCQ

Question 1/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

मानव पुरुष में शुक्राणु किस अंग में बनते हैं?

In human males sperm are produced in which organ?

Explanation opens after your attempt

Correct Answer

A. वृषणTestis

Step 1

Concept

अवधारणा पहचानें: यह पुरुष जनन तंत्र का प्रश्न है। / Identify the concept: this is about the male reproductive system.

Step 2

Why this answer is correct

वृषण में शुक्राणु बनते हैं और testosterone भी बनता है। / Testes produce sperms and also produce testosterone.

Step 3

Exam Tip

Exam tip: Testis को sperm factory याद रखें। / Exam tip: remember testis as the sperm factory.

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Question 2/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

मानव महिला में अंडाणु किस अंग में बनते हैं?

In human females ova are produced in which organ?

Explanation opens after your attempt

Correct Answer

B. अंडाशयOvary

Step 1

Concept

अवधारणा पहचानें: यह महिला जनन तंत्र का मूल प्रश्न है। / Identify the concept: this is about the female reproductive system.

Step 2

Why this answer is correct

अंडाशय अंडाणु बनाते हैं और female hormones भी स्रावित करते हैं। / Ovaries produce ova and also secrete female hormones.

Step 3

Exam Tip

Exam tip: Ovary को ova और hormones से जोड़कर याद रखें। / Exam tip: connect ovary with ova and hormones.

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Question 3/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

वृषण शरीर के बाहर किस थैली में स्थित होते हैं?

Testes are located outside the body in which sac?

Explanation opens after your attempt

Correct Answer

A. अंडकोशScrotum

Step 1

Concept

अवधारणा पहचानें: यह testes की position से जुड़ा है। / Identify the concept: this is about the position of testes.

Step 2

Why this answer is correct

वृषण अंडकोश में होते हैं जिससे शुक्राणु बनने के लिए उचित कम तापमान मिलता है। / Testes lie in the scrotum which helps maintain a lower suitable temperature for sperm formation.

Step 3

Exam Tip

Exam tip: Scrotum तापमान नियंत्रण में मदद करता है। / Exam tip: scrotum helps in temperature control.

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Question 4/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

शुक्राणु निर्माण की प्रक्रिया को क्या कहते हैं?

What is the process of sperm formation called?

Explanation opens after your attempt

Correct Answer

B. शुक्रजननSpermatogenesis

Step 1

Concept

अवधारणा पहचानें: यह gamete formation से जुड़ा है। / Identify the concept: this is about gamete formation.

Step 2

Why this answer is correct

शुक्राणु बनने की प्रक्रिया spermatogenesis कहलाती है। / The process of formation of sperms is called spermatogenesis.

Step 3

Exam Tip

Exam tip: sperm शब्द आए तो spermatogenesis याद रखें। / Exam tip: when you see sperm formation remember spermatogenesis.

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Question 5/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

अंडाणु निर्माण की प्रक्रिया को क्या कहते हैं?

What is the process of ovum formation called?

Explanation opens after your attempt

Correct Answer

B. अंडजननOogenesis

Step 1

Concept

अवधारणा पहचानें: यह female gamete formation है। / Identify the concept: this is female gamete formation.

Step 2

Why this answer is correct

अंडाणु बनने की प्रक्रिया oogenesis कहलाती है। / The process of formation of ovum is called oogenesis.

Step 3

Exam Tip

Exam tip: ovum formation के लिए oogenesis याद रखें। / Exam tip: remember oogenesis for ovum formation.

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Question 6/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

वृषण में शुक्राणु मुख्य रूप से किस संरचना में बनते हैं?

In testes sperms are mainly formed in which structure?

Explanation opens after your attempt

Correct Answer

B. सेमिनिफेरस नलिकाएंSeminiferous tubules

Step 1

Concept

अवधारणा पहचानें: यह testis की internal structure है। / Identify the concept: this is about internal structure of testis.

Step 2

Why this answer is correct

Spermatogenesis seminiferous tubules में होती है। / Spermatogenesis occurs in the seminiferous tubules.

Step 3

Exam Tip

Exam tip: Seminiferous tubules को sperm formation site याद रखें। / Exam tip: remember seminiferous tubules as the sperm formation site.

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Question 7/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

Sertoli cells का मुख्य कार्य क्या है?

What is the main function of Sertoli cells?

Explanation opens after your attempt

Correct Answer

A. शुक्राणु कोशिकाओं को पोषण देनाNourish sperm cells

Step 1

Concept

अवधारणा पहचानें: यह seminiferous tubules की cells से जुड़ा है। / Identify the concept: this is about cells of seminiferous tubules.

Step 2

Why this answer is correct

Sertoli cells developing sperm cells को support और nutrition देती हैं। / Sertoli cells support and nourish developing sperm cells.

Step 3

Exam Tip

Exam tip: Sertoli को support cell याद रखें। / Exam tip: remember Sertoli as support cells.

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Question 8/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

Leydig cells मुख्य रूप से कौन सा hormone बनाती हैं?

Leydig cells mainly produce which hormone?

Explanation opens after your attempt

Correct Answer

B. Testosterone

Step 1

Concept

अवधारणा पहचानें: यह male hormone production है। / Identify the concept: this is male hormone production.

Step 2

Why this answer is correct

Leydig cells testes में androgens बनाती हैं जिनमें testosterone मुख्य है। / Leydig cells in testes produce androgens mainly testosterone.

Step 3

Exam Tip

Exam tip: Leydig cells को testosterone से याद रखें। / Exam tip: remember Leydig cells with testosterone.

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Question 9/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

शुक्राणुओं का maturation और storage मुख्य रूप से कहां होता है?

Maturation and storage of sperms mainly occur where?

Explanation opens after your attempt

Correct Answer

A. Epididymis

Step 1

Concept

अवधारणा पहचानें: यह sperm pathway से जुड़ा है। / Identify the concept: this is about sperm pathway.

Step 2

Why this answer is correct

Epididymis में sperm mature होते हैं और कुछ समय store रहते हैं। / Sperms mature and are stored for some time in the epididymis.

Step 3

Exam Tip

Exam tip: Epididymis को sperm storage और maturation से जोड़ें। / Exam tip: connect epididymis with sperm storage and maturation.

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Question 10/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

Vas deferens का मुख्य कार्य क्या है?

What is the main function of vas deferens?

Explanation opens after your attempt

Correct Answer

A. शुक्राणुओं का transportTransport of sperms

Step 1

Concept

अवधारणा पहचानें: यह male duct system है। / Identify the concept: this is the male duct system.

Step 2

Why this answer is correct

Vas deferens sperm को epididymis से आगे transport करता है। / Vas deferens transports sperms from epididymis onward.

Step 3

Exam Tip

Exam tip: Vas deferens को sperm carrying duct याद रखें। / Exam tip: remember vas deferens as a sperm carrying duct.

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Question 11/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

Semen मुख्य रूप से किससे मिलकर बनता है?

Semen is mainly made of what?

Explanation opens after your attempt

Correct Answer

B. शुक्राणु और accessory gland secretionsSperms and accessory gland secretions

Step 1

Concept

अवधारणा पहचानें: यह semen composition है। / Identify the concept: this is semen composition.

Step 2

Why this answer is correct

Semen में sperms और seminal vesicle prostate आदि glands के secretions होते हैं। / Semen contains sperms and secretions of glands such as seminal vesicles and prostate.

Step 3

Exam Tip

Exam tip: Semen equals sperms plus fluid secretions याद रखें। / Exam tip: remember semen equals sperms plus fluid secretions.

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Question 12/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

कौन सी ग्रंथि male accessory gland है?

Which gland is a male accessory gland?

Explanation opens after your attempt

Correct Answer

A. Prostate gland

Step 1

Concept

अवधारणा पहचानें: यह male accessory glands का प्रश्न है। / Identify the concept: this is about male accessory glands.

Step 2

Why this answer is correct

Prostate gland male reproductive system की accessory gland है। / Prostate gland is an accessory gland of the male reproductive system.

Step 3

Exam Tip

Exam tip: Seminal vesicles prostate और bulbourethral glands को साथ याद रखें। / Exam tip: remember seminal vesicles prostate and bulbourethral glands together.

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Question 13/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

शुक्राणु के head में कौन सी enzyme containing cap जैसी संरचना होती है?

Which enzyme containing cap like structure is present in the head of sperm?

Explanation opens after your attempt

Correct Answer

A. Acrosome

Step 1

Concept

अवधारणा पहचानें: यह sperm structure है। / Identify the concept: this is sperm structure.

Step 2

Why this answer is correct

Acrosome sperm head पर cap जैसी संरचना है जिसमें enzymes होते हैं। / Acrosome is a cap like structure on the sperm head and contains enzymes.

Step 3

Exam Tip

Exam tip: Acrosome fertilization में egg covering को penetrate करने में मदद करता है। / Exam tip: acrosome helps penetrate egg coverings during fertilization.

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Question 14/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

शुक्राणु की tail का मुख्य कार्य क्या है?

What is the main function of the tail of sperm?

Explanation opens after your attempt

Correct Answer

A. Movement में सहायताHelps in movement

Step 1

Concept

अवधारणा पहचानें: यह sperm parts का function है। / Identify the concept: this is function of sperm parts.

Step 2

Why this answer is correct

Tail sperm को female tract में move करने में मदद करती है। / The tail helps sperm move through the female tract.

Step 3

Exam Tip

Exam tip: Tail means movement याद रखें। / Exam tip: remember tail means movement.

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Question 15/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

मानव female reproductive system में fertilization सामान्यतः कहां होता है?

Where does fertilization normally occur in the human female reproductive system?

Explanation opens after your attempt

Correct Answer

C. फैलोपियन ट्यूब का ampulla-isthmus junctionAmpulla-isthmus junction of oviduct

Step 1

Concept

अवधारणा पहचानें: यह fertilization site है। / Identify the concept: this is the site of fertilization.

Step 2

Why this answer is correct

मानव में fertilization सामान्यतः oviduct के ampulla-isthmus junction पर होता है। / In humans fertilization usually occurs at the ampulla-isthmus junction of the oviduct.

Step 3

Exam Tip

Exam tip: Fertilization site को ampulla-isthmus junction याद रखें। / Exam tip: remember ampulla-isthmus junction as fertilization site.

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Question 16/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

Fallopian tube को और किस नाम से जाना जाता है?

Fallopian tube is also known as what?

Explanation opens after your attempt

Correct Answer

A. Oviduct

Step 1

Concept

अवधारणा पहचानें: यह female duct system है। / Identify the concept: this is the female duct system.

Step 2

Why this answer is correct

Fallopian tube को oviduct भी कहा जाता है और यह egg transport में मदद करती है। / Fallopian tube is also called oviduct and helps transport the egg.

Step 3

Exam Tip

Exam tip: Fallopian tube equals oviduct याद रखें। / Exam tip: remember Fallopian tube equals oviduct.

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Question 17/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

Uterus का सरल हिंदी नाम क्या है?

What is the simple Hindi name of uterus?

Explanation opens after your attempt

Correct Answer

B. गर्भाशयWomb

Step 1

Concept

अवधारणा पहचानें: यह female reproductive organ term है। / Identify the concept: this is a female reproductive organ term.

Step 2

Why this answer is correct

Uterus को गर्भाशय या womb कहा जाता है जहां embryo development होता है। / Uterus is called womb and supports embryo development.

Step 3

Exam Tip

Exam tip: Uterus को pregnancy organ याद रखें। / Exam tip: remember uterus as the pregnancy organ.

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Question 18/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

Uterus की inner lining को क्या कहते हैं?

What is the inner lining of uterus called?

Explanation opens after your attempt

Correct Answer

B. Endometrium

Step 1

Concept

अवधारणा पहचानें: यह uterus layers से जुड़ा है। / Identify the concept: this is about uterine layers.

Step 2

Why this answer is correct

Endometrium uterus की inner lining है जो menstrual cycle में बदलती है। / Endometrium is the inner lining of uterus and changes during the menstrual cycle.

Step 3

Exam Tip

Exam tip: Endometrium implantation और menstruation से जुड़ा है। / Exam tip: endometrium is linked with implantation and menstruation.

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Question 19/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

Cervix किसका भाग है?

Cervix is a part of which organ?

Explanation opens after your attempt

Correct Answer

A. गर्भाशयUterus

Step 1

Concept

अवधारणा पहचानें: यह female reproductive tract है। / Identify the concept: this is female reproductive tract.

Step 2

Why this answer is correct

Cervix uterus का narrow lower part है जो vagina से जुड़ता है। / Cervix is the narrow lower part of uterus that connects with the vagina.

Step 3

Exam Tip

Exam tip: Cervix को uterus का neck याद रखें। / Exam tip: remember cervix as the neck of uterus.

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Question 20/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

Ovulation का अर्थ क्या है?

What does ovulation mean?

Explanation opens after your attempt

Correct Answer

A. अंडाशय से mature ovum का निकलनाRelease of mature ovum from ovary

Step 1

Concept

अवधारणा पहचानें: यह menstrual cycle event है। / Identify the concept: this is an event of menstrual cycle.

Step 2

Why this answer is correct

Ovulation में mature ovum ovary से release होता है। / In ovulation a mature ovum is released from the ovary.

Step 3

Exam Tip

Exam tip: Ovulation सामान्यतः cycle के middle के आसपास होता है। / Exam tip: ovulation usually occurs around the middle of the cycle.

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Question 21/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

मानव menstrual cycle औसतन कितने दिन का माना जाता है?

The human menstrual cycle is considered about how many days on average?

Explanation opens after your attempt

Correct Answer

C. 28 दिन28 days

Step 1

Concept

अवधारणा पहचानें: यह menstrual cycle duration है। / Identify the concept: this is menstrual cycle duration.

Step 2

Why this answer is correct

मानव menstrual cycle सामान्यतः लगभग 28 दिन का माना जाता है। / The human menstrual cycle is generally considered about 28 days.

Step 3

Exam Tip

Exam tip: Average cycle length के लिए 28 days याद रखें। / Exam tip: remember 28 days for average cycle length.

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Question 22/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

Menstrual cycle की शुरुआत किस phase से मानी जाती है?

The menstrual cycle is considered to start with which phase?

Explanation opens after your attempt

Correct Answer

A. Menstrual phase

Step 1

Concept

अवधारणा पहचानें: यह menstrual cycle phases है। / Identify the concept: this is about phases of menstrual cycle.

Step 2

Why this answer is correct

Cycle का day 1 menstrual bleeding के साथ माना जाता है इसलिए menstrual phase शुरुआत है। / Day 1 of the cycle is counted from menstrual bleeding so menstrual phase is the start.

Step 3

Exam Tip

Exam tip: Day 1 means menstruation starts। / Exam tip: day 1 means menstruation starts.

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Question 23/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

Ovulation को trigger करने वाला hormone surge कौन सा है?

Which hormone surge triggers ovulation?

Explanation opens after your attempt

Correct Answer

B. LH surge

Step 1

Concept

अवधारणा पहचानें: यह hormonal control of ovulation है। / Identify the concept: this is hormonal control of ovulation.

Step 2

Why this answer is correct

LH surge ovulation को trigger करता है। / LH surge triggers ovulation.

Step 3

Exam Tip

Exam tip: Ovulation के लिए LH surge याद रखें। / Exam tip: remember LH surge for ovulation.

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Question 24/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

Corpus luteum मुख्य रूप से कौन सा hormone स्रावित करता है?

Corpus luteum mainly secretes which hormone?

Explanation opens after your attempt

Correct Answer

A. Progesterone

Step 1

Concept

अवधारणा पहचानें: यह ovarian structure और hormone है। / Identify the concept: this is about ovarian structure and hormone.

Step 2

Why this answer is correct

Corpus luteum progesterone स्रावित करता है जो endometrium को maintain करने में मदद करता है। / Corpus luteum secretes progesterone which helps maintain the endometrium.

Step 3

Exam Tip

Exam tip: Corpus luteum को progesterone से याद रखें। / Exam tip: remember corpus luteum with progesterone.

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Question 25/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

यदि fertilization नहीं होता तो corpus luteum का क्या होता है?

What happens to corpus luteum if fertilization does not occur?

Explanation opens after your attempt

Correct Answer

A. यह degrade होकर corpus albicans बनता हैIt degenerates into corpus albicans

Step 1

Concept

अवधारणा पहचानें: यह menstrual cycle का outcome है। / Identify the concept: this is the outcome in menstrual cycle.

Step 2

Why this answer is correct

Fertilization न होने पर corpus luteum degenerates और corpus albicans बनता है। / If fertilization does not occur corpus luteum degenerates and becomes corpus albicans.

Step 3

Exam Tip

Exam tip: No pregnancy means corpus luteum regression। / Exam tip: no pregnancy means regression of corpus luteum.

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Question 26/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

Fertilization के बाद बनने वाली पहली cell कौन सी है?

Which first cell is formed after fertilization?

Explanation opens after your attempt

Correct Answer

A. Zygote

Step 1

Concept

अवधारणा पहचानें: यह fertilization result है। / Identify the concept: this is result of fertilization.

Step 2

Why this answer is correct

Male और female gamete के fusion से zygote बनता है। / Fusion of male and female gametes forms the zygote.

Step 3

Exam Tip

Exam tip: Zygote new individual की first cell है। / Exam tip: zygote is the first cell of a new individual.

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Question 27/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

Zygote का repeated mitotic division क्या कहलाता है?

Repeated mitotic division of zygote is called what?

Explanation opens after your attempt

Correct Answer

A. Cleavage

Step 1

Concept

अवधारणा पहचानें: यह early embryonic development है। / Identify the concept: this is early embryonic development.

Step 2

Why this answer is correct

Zygote के rapid mitotic divisions को cleavage कहते हैं। / Rapid mitotic divisions of zygote are called cleavage.

Step 3

Exam Tip

Exam tip: Cleavage means early divisions without large growth। / Exam tip: cleavage means early divisions without large growth.

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Question 28/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

Cleavage के बाद solid ball like stage को क्या कहते हैं?

After cleavage the solid ball like stage is called what?

Explanation opens after your attempt

Correct Answer

A. Morula

Step 1

Concept

अवधारणा पहचानें: यह embryo development stage है। / Identify the concept: this is an embryo development stage.

Step 2

Why this answer is correct

Cleavage के बाद cells का solid ball morula कहलाता है। / After cleavage a solid ball of cells is called morula.

Step 3

Exam Tip

Exam tip: Morula को mulberry like solid ball याद रखें। / Exam tip: remember morula as a mulberry like solid ball.

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Question 29/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

Blastocyst का uterus wall में embed होना क्या कहलाता है?

Embedding of blastocyst into the uterine wall is called what?

Explanation opens after your attempt

Correct Answer

A. Implantation

Step 1

Concept

अवधारणा पहचानें: यह pregnancy की शुरुआत से जुड़ा है। / Identify the concept: this is related to beginning of pregnancy.

Step 2

Why this answer is correct

Blastocyst जब endometrium में embed होता है तो इसे implantation कहते हैं। / When the blastocyst embeds in the endometrium it is called implantation.

Step 3

Exam Tip

Exam tip: Implantation means embryo fixing in uterus। / Exam tip: implantation means embryo fixing in uterus.

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Question 30/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

Blastocyst में outer layer को क्या कहते हैं?

What is the outer layer of blastocyst called?

Explanation opens after your attempt

Correct Answer

A. Trophoblast

Step 1

Concept

अवधारणा पहचानें: यह blastocyst structure है। / Identify the concept: this is blastocyst structure.

Step 2

Why this answer is correct

Blastocyst की outer layer trophoblast कहलाती है और placenta formation में मदद करती है। / The outer layer of blastocyst is called trophoblast and helps in placenta formation.

Step 3

Exam Tip

Exam tip: Trophoblast बाहर होता है। / Exam tip: trophoblast is outside.

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Question 31/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

Blastocyst में embryo proper किससे बनता है?

In blastocyst embryo proper develops from what?

Explanation opens after your attempt

Correct Answer

A. Inner cell mass

Step 1

Concept

अवधारणा पहचानें: यह blastocyst parts है। / Identify the concept: this is about blastocyst parts.

Step 2

Why this answer is correct

Inner cell mass आगे चलकर embryo proper बनाता है। / Inner cell mass later forms the embryo proper.

Step 3

Exam Tip

Exam tip: Inner cell mass means future embryo। / Exam tip: inner cell mass means future embryo.

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Question 32/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

Placenta का मुख्य कार्य क्या है?

What is the main function of placenta?

Explanation opens after your attempt

Correct Answer

A. मां और भ्रूण के बीच पदार्थों का आदान प्रदानExchange of materials between mother and foetus

Step 1

Concept

अवधारणा पहचानें: यह placenta function है। / Identify the concept: this is placenta function.

Step 2

Why this answer is correct

Placenta mother और foetus के बीच gases nutrients और wastes का exchange कराता है। / Placenta allows exchange of gases nutrients and wastes between mother and foetus.

Step 3

Exam Tip

Exam tip: Placenta को exchange organ याद रखें। / Exam tip: remember placenta as the exchange organ.

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Question 33/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

Foetus placenta से किस structure द्वारा जुड़ा रहता है?

Foetus is connected to placenta through which structure?

Explanation opens after your attempt

Correct Answer

A. Umbilical cord

Step 1

Concept

अवधारणा पहचानें: यह foetal connection है। / Identify the concept: this is foetal connection.

Step 2

Why this answer is correct

Umbilical cord foetus को placenta से जोड़ती है। / Umbilical cord connects the foetus with the placenta.

Step 3

Exam Tip

Exam tip: Umbilical cord को foetus placenta connection याद रखें। / Exam tip: remember umbilical cord as foetus placenta connection.

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Question 34/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

Placenta कौन सा pregnancy hormone स्रावित करता है?

Placenta secretes which pregnancy hormone?

Explanation opens after your attempt

Correct Answer

A. hCG

Step 1

Concept

अवधारणा पहचानें: यह placenta endocrine function है। / Identify the concept: this is endocrine function of placenta.

Step 2

Why this answer is correct

Placenta hCG जैसे hormones स्रावित करता है जो pregnancy maintain करने में मदद करते हैं। / Placenta secretes hormones such as hCG which help maintain pregnancy.

Step 3

Exam Tip

Exam tip: hCG को pregnancy hormone से जोड़ें। / Exam tip: connect hCG with pregnancy hormone.

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Question 35/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

Gestation period का अर्थ क्या है?

What does gestation period mean?

Explanation opens after your attempt

Correct Answer

A. Fertilization से birth तक का समयTime from fertilization to birth

Step 1

Concept

अवधारणा पहचानें: यह pregnancy duration term है। / Identify the concept: this is a pregnancy duration term.

Step 2

Why this answer is correct

Gestation period fertilization से birth तक development का समय है। / Gestation period is the time of development from fertilization to birth.

Step 3

Exam Tip

Exam tip: Gestation means pregnancy period याद रखें। / Exam tip: remember gestation as pregnancy period.

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Question 36/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

मानव pregnancy लगभग कितने महीने की होती है?

Human pregnancy is about how many months?

Explanation opens after your attempt

Correct Answer

C. 9 महीने9 months

Step 1

Concept

अवधारणा पहचानें: यह gestation period का basic fact है। / Identify the concept: this is a basic fact about gestation period.

Step 2

Why this answer is correct

मानव gestation period लगभग 9 महीने का होता है। / Human gestation period is about 9 months.

Step 3

Exam Tip

Exam tip: Human pregnancy roughly 9 months याद रखें। / Exam tip: remember human pregnancy as roughly 9 months.

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Question 37/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

Birth process को biology में क्या कहते हैं?

What is the birth process called in biology?

Explanation opens after your attempt

Correct Answer

A. Parturition

Step 1

Concept

अवधारणा पहचानें: यह childbirth term है। / Identify the concept: this is childbirth term.

Step 2

Why this answer is correct

शिशु के जन्म की प्रक्रिया parturition कहलाती है। / The process of birth of baby is called parturition.

Step 3

Exam Tip

Exam tip: Parturition means birth याद रखें। / Exam tip: remember parturition means birth.

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Question 38/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

Parturition में uterus contraction को कौन सा hormone stimulate करता है?

Which hormone stimulates uterine contractions during parturition?

Explanation opens after your attempt

Correct Answer

A. Oxytocin

Step 1

Concept

अवधारणा पहचानें: यह parturition hormone है। / Identify the concept: this is hormone of parturition.

Step 2

Why this answer is correct

Oxytocin uterus की strong contractions को stimulate करता है। / Oxytocin stimulates strong contractions of the uterus.

Step 3

Exam Tip

Exam tip: Oxytocin को birth contraction hormone याद रखें। / Exam tip: remember oxytocin as birth contraction hormone.

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Question 39/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

दूध उत्पादन की प्रक्रिया को क्या कहते हैं?

What is the process of milk production called?

Explanation opens after your attempt

Correct Answer

A. Lactation

Step 1

Concept

अवधारणा पहचानें: यह mammary glands function है। / Identify the concept: this is function of mammary glands.

Step 2

Why this answer is correct

बच्चे के जन्म के बाद mammary glands द्वारा milk production lactation कहलाता है। / Milk production by mammary glands after childbirth is called lactation.

Step 3

Exam Tip

Exam tip: Lactation means milk production। / Exam tip: lactation means milk production.

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Question 40/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

Colostrum किससे भरपूर होता है?

Colostrum is rich in what?

Explanation opens after your attempt

Correct Answer

A. Antibodies

Step 1

Concept

अवधारणा पहचानें: यह first milk से जुड़ा है। / Identify the concept: this is about first milk.

Step 2

Why this answer is correct

Colostrum antibody rich होता है और newborn को immunity देता है। / Colostrum is rich in antibodies and gives immunity to the newborn.

Step 3

Exam Tip

Exam tip: Colostrum को first immunity milk याद रखें। / Exam tip: remember colostrum as first immunity milk.

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Question 41/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

Primary sex organ in males कौन सा है?

Which is the primary sex organ in males?

Explanation opens after your attempt

Correct Answer

A. Testis

Step 1

Concept

अवधारणा पहचानें: यह primary sex organ है। / Identify the concept: this is primary sex organ.

Step 2

Why this answer is correct

Male primary sex organ testis है क्योंकि यह gametes और hormones बनाता है। / Male primary sex organ is testis because it produces gametes and hormones.

Step 3

Exam Tip

Exam tip: Primary sex organ makes gametes। / Exam tip: primary sex organ makes gametes.

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Question 42/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

Primary sex organ in females कौन सा है?

Which is the primary sex organ in females?

Explanation opens after your attempt

Correct Answer

A. Ovary

Step 1

Concept

अवधारणा पहचानें: यह female primary sex organ है। / Identify the concept: this is female primary sex organ.

Step 2

Why this answer is correct

Ovary primary sex organ है क्योंकि यह ova और hormones बनाता है। / Ovary is the primary sex organ because it produces ova and hormones.

Step 3

Exam Tip

Exam tip: Ovary makes ovum and hormones। / Exam tip: ovary makes ovum and hormones.

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Question 43/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

Spermiogenesis का अर्थ क्या है?

What does spermiogenesis mean?

Explanation opens after your attempt

Correct Answer

A. Spermatids का sperms में बदलनाTransformation of spermatids into sperms

Step 1

Concept

अवधारणा पहचानें: यह spermatogenesis का अंतिम बदलाव है। / Identify the concept: this is final transformation in spermatogenesis.

Step 2

Why this answer is correct

Spermiogenesis में spermatids mature sperms में बदलते हैं। / During spermiogenesis spermatids change into mature sperms.

Step 3

Exam Tip

Exam tip: Spermatid to sperm means spermiogenesis। / Exam tip: spermatid to sperm means spermiogenesis.

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Question 44/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

Spermiation का अर्थ क्या है?

What does spermiation mean?

Explanation opens after your attempt

Correct Answer

A. Mature sperms का seminiferous tubules से release होनाRelease of mature sperms from seminiferous tubules

Step 1

Concept

अवधारणा पहचानें: यह sperm release term है। / Identify the concept: this is sperm release term.

Step 2

Why this answer is correct

Mature sperms जब seminiferous tubules से release होते हैं तो उसे spermiation कहते हैं। / Release of mature sperms from seminiferous tubules is called spermiation.

Step 3

Exam Tip

Exam tip: Spermiation means sperm release। / Exam tip: spermiation means sperm release.

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Question 45/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

FSH male reproductive system में किस cells पर काम करता है?

FSH acts on which cells in male reproductive system?

Explanation opens after your attempt

Correct Answer

A. Sertoli cells

Step 1

Concept

अवधारणा पहचानें: यह hormonal control of spermatogenesis है। / Identify the concept: this is hormonal control of spermatogenesis.

Step 2

Why this answer is correct

FSH Sertoli cells पर act करके spermatogenesis में सहायता करता है। / FSH acts on Sertoli cells and supports spermatogenesis.

Step 3

Exam Tip

Exam tip: FSH plus Sertoli याद रखें। / Exam tip: remember FSH plus Sertoli.

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Question 46/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

LH male reproductive system में किस cells को stimulate करता है?

LH stimulates which cells in male reproductive system?

Explanation opens after your attempt

Correct Answer

A. Leydig cells

Step 1

Concept

अवधारणा पहचानें: यह male hormone regulation है। / Identify the concept: this is male hormone regulation.

Step 2

Why this answer is correct

LH Leydig cells को stimulate करता है जिससे androgens बनते हैं। / LH stimulates Leydig cells to produce androgens.

Step 3

Exam Tip

Exam tip: LH plus Leydig equals testosterone। / Exam tip: LH plus Leydig equals testosterone.

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Question 47/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

Graafian follicle किससे संबंधित है?

Graafian follicle is related to what?

Explanation opens after your attempt

Correct Answer

A. Mature ovarian follicle

Step 1

Concept

अवधारणा पहचानें: यह ovarian follicle stage है। / Identify the concept: this is ovarian follicle stage.

Step 2

Why this answer is correct

Graafian follicle mature follicle है जो ovulation के समय ovum release करता है। / Graafian follicle is the mature follicle that releases ovum during ovulation.

Step 3

Exam Tip

Exam tip: Graafian follicle को ovulation से जोड़ें। / Exam tip: connect Graafian follicle with ovulation.

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Question 48/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

Female external genitalia को सामूहिक रूप से क्या कहते हैं?

Female external genitalia are collectively called what?

Explanation opens after your attempt

Correct Answer

A. Vulva

Step 1

Concept

अवधारणा पहचानें: यह female reproductive anatomy term है। / Identify the concept: this is female reproductive anatomy term.

Step 2

Why this answer is correct

Female external genitalia को collectively vulva कहा जाता है। / Female external genitalia are collectively called vulva.

Step 3

Exam Tip

Exam tip: Vulva means external female genitalia। / Exam tip: vulva means external female genitalia.

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Question 49/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

Mammary glands का मुख्य कार्य क्या है?

What is the main function of mammary glands?

Explanation opens after your attempt

Correct Answer

A. Milk production for newborn

Step 1

Concept

अवधारणा पहचानें: यह mammary glands function है। / Identify the concept: this is function of mammary glands.

Step 2

Why this answer is correct

Mammary glands childbirth के बाद newborn के लिए milk produce करती हैं। / Mammary glands produce milk for the newborn after childbirth.

Step 3

Exam Tip

Exam tip: Mammary glands को lactation से याद रखें। / Exam tip: remember mammary glands with lactation.

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Question 50/50 Easy Biology Chapter 2: Human Reproduction Human Reproduction Class 12 Level 1

Fertilization के लिए sperm और ovum का fusion क्या बनाता है?

Fusion of sperm and ovum during fertilization forms what?

Explanation opens after your attempt

Correct Answer

A. Zygote

Step 1

Concept

अवधारणा पहचानें: यह fertilization का direct result है। / Identify the concept: this is the direct result of fertilization.

Step 2

Why this answer is correct

Sperm और ovum के fusion से diploid zygote बनता है। / Fusion of sperm and ovum forms a diploid zygote.

Step 3

Exam Tip

Exam tip: Gamete fusion equals zygote याद रखें। / Exam tip: remember gamete fusion equals zygote.

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Biology Chapter 2 Human Reproduction MCQ Questions for Class 12 General

Class 12 General Biology Chapter 2 Human Reproduction Practice

Chapter 2 Human Reproduction - Topics Covered

Start Chapter 2 Human Reproduction Quiz

Biology Chapter 2 Human Reproduction MCQ Questions

मानव पुरुष में शुक्राणु किस अंग में बनते हैं?

Concept

Why this answer is correct

Exam Tip

मानव महिला में अंडाणु किस अंग में बनते हैं?

Concept

Why this answer is correct

Exam Tip

वृषण शरीर के बाहर किस थैली में स्थित होते हैं?

Concept

Why this answer is correct

Exam Tip

शुक्राणु निर्माण की प्रक्रिया को क्या कहते हैं?

Concept

Why this answer is correct

Exam Tip

अंडाणु निर्माण की प्रक्रिया को क्या कहते हैं?

Concept

Why this answer is correct

Exam Tip

वृषण में शुक्राणु मुख्य रूप से किस संरचना में बनते हैं?

Concept

Why this answer is correct

Exam Tip

Sertoli cells का मुख्य कार्य क्या है?

Concept

Why this answer is correct

Exam Tip

Leydig cells मुख्य रूप से कौन सा hormone बनाती हैं?

Concept

Why this answer is correct

Exam Tip

शुक्राणुओं का maturation और storage मुख्य रूप से कहां होता है?

Concept

Why this answer is correct

Exam Tip

Vas deferens का मुख्य कार्य क्या है?

Concept

Why this answer is correct

Exam Tip

Semen मुख्य रूप से किससे मिलकर बनता है?

Concept

Why this answer is correct

Exam Tip

कौन सी ग्रंथि male accessory gland है?

Concept

Why this answer is correct

Exam Tip

शुक्राणु के head में कौन सी enzyme containing cap जैसी संरचना होती है?

Concept

Why this answer is correct

Exam Tip

शुक्राणु की tail का मुख्य कार्य क्या है?

Concept

Why this answer is correct

Exam Tip

मानव female reproductive system में fertilization सामान्यतः कहां होता है?

Concept

Why this answer is correct

Exam Tip

Fallopian tube को और किस नाम से जाना जाता है?

Concept

Why this answer is correct

Exam Tip

Uterus का सरल हिंदी नाम क्या है?

Concept

Why this answer is correct

Exam Tip

Uterus की inner lining को क्या कहते हैं?

Concept

Why this answer is correct

Exam Tip

Cervix किसका भाग है?

Concept

Why this answer is correct