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. वृषण/Testis
Step 1
Concept
Identify the concept: this is about the male reproductive system.
Step 2
Why this answer is correct
Testes produce sperms and also produce testosterone.
Step 3
Exam Tip
Exam tip: remember testis as the sperm factory.
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एक बीज में एक से अधिक भ्रूण बनने की स्थिति को क्या कहते हैं?
The condition of having more than one embryo in a seed is called what?
Explanation opens after your attempt
Correct Answer
A. बहुभ्रूणता/Polyembryony
Step 1
Concept
Identify the concept: some seeds may have more than one embryo.
Step 2
Why this answer is correct
This condition is called polyembryony.
Step 3
Exam Tip
Exam note: Poly means many and embryo means young plant structure.
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बिना निषेचन के बीज बनने की प्रक्रिया को क्या कहते हैं?
Formation of seed without fertilization is called what?
Explanation opens after your attempt
Correct Answer
B. अपोमिक्सिस/Apomixis
Step 1
Concept
Identify the concept: sometimes seeds form without fertilization.
Step 2
Why this answer is correct
This process is called apomixis.
Step 3
Exam Tip
Exam note: Apomixis forms seeds without fertilization.
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बीज प्रसुप्ति का क्या लाभ है?
What is the advantage of seed dormancy?
Explanation opens after your attempt
Correct Answer
B. बीज प्रतिकूल परिस्थितियों में जीवित रह सकते हैं/Seeds can survive unfavorable conditions
Step 1
Concept
Identify the concept: dormancy means the seed remains inactive for some time.
Step 2
Why this answer is correct
It helps the seed survive unfavorable conditions like drought or cold.
Step 3
Exam Tip
Exam note: Dormancy helps survival and correct germination time.
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बीज का कौन-सा भाग भविष्य का प्ररोह बनाता है?
Which part of the seed embryo forms the future shoot?
Explanation opens after your attempt
Correct Answer
B. प्लूम्यूल/Plumule
Step 1
Concept
Identify the concept: embryo gives rise to a new plant.
Step 2
Why this answer is correct
Plumule develops into the future shoot.
Step 3
Exam Tip
Memory tip: Plumule means shoot part.
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बीज का कौन-सा भाग भविष्य की जड़ बनाता है?
Which part of the seed embryo forms the future root?
Explanation opens after your attempt
Correct Answer
B. रैडिकल/Radicle
Step 1
Concept
Identify the concept: embryo has future shoot and root parts.
Step 2
Why this answer is correct
Radicle develops into the future root.
Step 3
Exam Tip
Memory tip: Radicle means root part.
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एकबीजपत्री भ्रूण में एकमात्र बीजपत्र को क्या कहते हैं?
What is the single cotyledon of a monocot embryo called?
Explanation opens after your attempt
Correct Answer
A. स्क्यूटेलम/Scutellum
Step 1
Concept
Identify the concept: a monocot embryo has one cotyledon.
Step 2
Why this answer is correct
In grasses, this single cotyledon is called scutellum.
Step 3
Exam Tip
Exam note: Scutellum is the single cotyledon of monocot embryo.
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द्विबीजपत्री भ्रूण में कितने बीजपत्र होते हैं?
How many cotyledons are present in a dicot embryo?
Explanation opens after your attempt
Step 1
Concept
Identify the concept: the word dicot itself gives the clue.
Step 2
Why this answer is correct
A dicot embryo has two cotyledons.
Step 3
Exam Tip
Exam note: Dicot means two cotyledons.
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भ्रूण में बीजपत्रों की संख्या के आधार पर आवृतबीजी पौधे किसमें बांटे जाते हैं?
Based on number of cotyledons in embryo, angiosperms are divided into which groups?
Explanation opens after your attempt
Correct Answer
B. एकबीजपत्री और द्विबीजपत्री/Monocots and dicots
Step 1
Concept
Identify the concept: cotyledons are parts of the embryo.
Step 2
Why this answer is correct
Plants with one cotyledon are monocots and with two are dicots.
Step 3
Exam Tip
Memory tip: Mono means one, di means two.
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एंडोस्पर्म का मुख्य कार्य क्या है?
What is the main function of endosperm?
Explanation opens after your attempt
Correct Answer
A. भ्रूण को पोषण देना/To nourish the embryo
Step 1
Concept
Identify the concept: endosperm is a post-fertilization tissue.
Step 2
Why this answer is correct
It provides food and nourishment to the developing embryo.
Step 3
Exam Tip
Exam note: Endosperm is nutritive.
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भ्रूण किससे विकसित होता है?
Embryo develops from which structure?
Explanation opens after your attempt
Correct Answer
B. युग्मनज/Zygote
Step 1
Concept
Identify the concept: syngamy forms the zygote.
Step 2
Why this answer is correct
The zygote divides and develops into the embryo.
Step 3
Exam Tip
Memory tip: Zygote to embryo is a basic sequence.
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बीजावरण किससे बनता है?
Seed coat develops from which part?
Explanation opens after your attempt
Correct Answer
A. बीजांडावरण/Integuments
Step 1
Concept
Identify the concept: seed has a protective outer covering.
Step 2
Why this answer is correct
Integuments of ovule form the seed coat.
Step 3
Exam Tip
Exam note: Integuments form seed coat.
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निषेचन के बाद अंडाशय किसमें बदलता है?
After fertilization, the ovary develops into what?
Explanation opens after your attempt
Correct Answer
B. फल/Fruit
Step 1
Concept
Identify the concept: the ovary grows after fertilization.
Step 2
Why this answer is correct
The ovary develops into the fruit.
Step 3
Exam Tip
Memory tip: Ovary becomes fruit, ovule becomes seed.
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निषेचन के बाद बीजांड किसमें बदलता है?
After fertilization, the ovule develops into what?
Explanation opens after your attempt
Correct Answer
B. बीज/Seed
Step 1
Concept
Identify the concept: after fertilization, flower parts change.
Step 2
Why this answer is correct
The ovule develops into the seed.
Step 3
Exam Tip
Exam note: Ovule becomes seed.
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ट्रिपल फ्यूजन के बाद मुख्य रूप से कौन-सा ऊतक बनता है?
Which tissue mainly forms after triple fusion?
Explanation opens after your attempt
Correct Answer
B. एंडोस्पर्म/Endosperm
Step 1
Concept
Identify the concept: triple fusion occurs in the central cell.
Step 2
Why this answer is correct
It leads to endosperm formation, which nourishes the embryo.
Step 3
Exam Tip
Exam note: Endosperm is a nutritive tissue.
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सिंगैमी के बाद क्या बनता है?
What is formed after syngamy?
Explanation opens after your attempt
Correct Answer
A. युग्मनज/Zygote
Step 1
Concept
Identify the concept: syngamy is fusion of egg and male gamete.
Step 2
Why this answer is correct
It forms the zygote, which later develops into embryo.
Step 3
Exam Tip
Memory tip: Zygote develops into embryo.
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ट्रिपल फ्यूजन में किसका संलयन होता है?
What fuses during triple fusion?
Explanation opens after your attempt
Correct Answer
B. एक नर युग्मक और दो ध्रुवीय केंद्रक/One male gamete and two polar nuclei
Step 1
Concept
Identify the concept: triple fusion is the second fusion in double fertilization.
Step 2
Why this answer is correct
One male gamete fuses with two polar nuclei.
Step 3
Exam Tip
Exam note: Triple fusion forms the primary endosperm nucleus.
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सिंगैमी में किसका संलयन होता है?
What fuses during syngamy?
Explanation opens after your attempt
Correct Answer
A. एक नर युग्मक और अंड कोशिका/One male gamete and egg cell
Step 1
Concept
Identify the concept: syngamy is part of fertilization.
Step 2
Why this answer is correct
One male gamete fuses with the egg to form the zygote.
Step 3
Exam Tip
Memory tip: Syngamy forms zygote.
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द्वि-निषेचन किस समूह की विशेषता है?
Double fertilization is a characteristic feature of which group?
Explanation opens after your attempt
Correct Answer
C. आवृतबीजी/Angiosperms
Step 1
Concept
Identify the concept: double fertilization occurs in flowering plants.
Step 2
Why this answer is correct
Angiosperms show two fusions: syngamy and triple fusion.
Step 3
Exam Tip
Exam note: Double fertilization is a special feature of angiosperms.
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पराग-स्त्रीकेसर अंतःक्रिया का मुख्य उद्देश्य क्या है?
What is the main purpose of pollen-pistil interaction?
Explanation opens after your attempt
Correct Answer
B. उचित पराग को पहचानना और स्वीकार करना/To recognize and accept compatible pollen
Step 1
Concept
Identify the concept: pollen and pistil show a recognition process.
Step 2
Why this answer is correct
Pistil accepts compatible pollen and may reject incompatible pollen.
Step 3
Exam Tip
Exam note: Compatibility is important for fertilization.
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सामान्यतः चार मेगास्पोर में से कितने क्रियाशील रहते हैं?
Usually how many megaspores remain functional out of four?
Explanation opens after your attempt
Step 1
Concept
Identify the concept: megasporogenesis forms four megaspores.
Step 2
Why this answer is correct
Usually only one remains functional and forms the embryo sac.
Step 3
Exam Tip
Memory tip: Four formed, one functional.
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मेगास्पोर मातृ कोशिका किस प्रक्रिया से मेगास्पोर बनाती है?
By which process does the megaspore mother cell form megaspores?
Explanation opens after your attempt
Correct Answer
B. मीयोसिस/Meiosis
Step 1
Concept
Identify the concept: megasporogenesis forms megaspores.
Step 2
Why this answer is correct
Megaspore mother cell undergoes meiosis to form four megaspores.
Step 3
Exam Tip
Exam note: Mother cell to spores usually involves meiosis.
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भ्रूणकोष की केंद्रीय कोशिका में सामान्यतः क्या होता है?
What is usually present in the central cell of the embryo sac?
Explanation opens after your attempt
Correct Answer
A. दो ध्रुवीय केंद्रक/Two polar nuclei
Step 1
Concept
Identify the concept: central cell is a large part of embryo sac.
Step 2
Why this answer is correct
It usually contains two polar nuclei, which later fuse with a male gamete.
Step 3
Exam Tip
Exam note: Central cell participates in triple fusion.
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भ्रूणकोष में प्रतिपाद कोशिकाएं किस सिरे पर पाई जाती हैं?
Antipodal cells are found at which end of the embryo sac?
Explanation opens after your attempt
Correct Answer
B. चालाजा सिरे पर/Chalazal end
Step 1
Concept
Identify the concept: embryo sac has two ends.
Step 2
Why this answer is correct
Antipodal cells are at the chalazal end.
Step 3
Exam Tip
Exam note: Egg apparatus is at micropylar end, antipodals are at chalazal end.
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अंड उपकरण में क्या-क्या शामिल होता है?
What is included in the egg apparatus?
Explanation opens after your attempt
Correct Answer
A. एक अंड कोशिका और दो सहायक कोशिकाएं/One egg cell and two synergids
Step 1
Concept
Identify the concept: egg apparatus is at the micropylar end of embryo sac.
Step 2
Why this answer is correct
It includes one egg cell and two synergids.
Step 3
Exam Tip
Memory tip: Egg apparatus equals 1 egg plus 2 synergids.
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सामान्य परिपक्व भ्रूणकोष में कितने केंद्रक होते हैं?
How many nuclei are present in a typical mature embryo sac?
Explanation opens after your attempt
Correct Answer
B. आठ/Eight
Step 1
Concept
Identify the concept: embryo sac structure is important for exams.
Step 2
Why this answer is correct
A typical mature embryo sac has 8 nuclei.
Step 3
Exam Tip
Exam note: Mature embryo sac is 7-celled and 8-nucleate.
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सामान्य परिपक्व भ्रूणकोष में कितनी कोशिकाएं होती हैं?
How many cells are present in a typical mature embryo sac?
Explanation opens after your attempt
Correct Answer
B. सात/Seven
Step 1
Concept
Identify the concept: typical embryo sac is 7-celled and 8-nucleate.
Step 2
Why this answer is correct
It has 7 cells because the central cell has two polar nuclei.
Step 3
Exam Tip
Memory tip: 7 cells, 8 nuclei.
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मादा युग्मकोद्भिद को सामान्यतः क्या कहा जाता है?
What is the female gametophyte commonly called?
Explanation opens after your attempt
Correct Answer
B. भ्रूणकोष/Embryo sac
Step 1
Concept
Identify the concept: female gametophyte is inside the ovule.
Step 2
Why this answer is correct
It is called the embryo sac.
Step 3
Exam Tip
Exam note: Female gametophyte equals embryo sac.
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बीजांड का मुख्य पोषक ऊतक कौन-सा है?
Which is the main nutritive tissue of the ovule?
Explanation opens after your attempt
Correct Answer
A. न्यूसेलस/Nucellus
Step 1
Concept
Identify the concept: ovule has tissue around the embryo sac.
Step 2
Why this answer is correct
Nucellus is the nutritive tissue.
Step 3
Exam Tip
Memory tip: Nucellus nourishes the embryo sac.
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बीजांड के छोटे छिद्र को क्या कहा जाता है?
What is the small opening in an ovule called?
Explanation opens after your attempt
Correct Answer
B. बीजांडद्वार/Micropyle
Step 1
Concept
Identify the concept: ovule has a small opening.
Step 2
Why this answer is correct
This opening is called micropyle and may allow pollen tube entry.
Step 3
Exam Tip
Exam note: Micropyle is also seen as a pore in seed.
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