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A. foreign DNA से defense/Defense against foreign DNA
Step 1
Concept
Bacteria can cut foreign DNA using restriction enzymes. This is a defense mechanism.
Step 2
Why this answer is correct
The correct answer is A. foreign DNA से defense / Defense against foreign DNA. Bacteria can cut foreign DNA using restriction enzymes. This is a defense mechanism.
Step 3
Exam Tip
Bacteria restriction enzymes से foreign DNA को काट सकते हैं। यह defense mechanism है।
A. compatible ligation allow कर सकते हैं/They can allow compatible ligation
Step 1
Concept
Different enzymes can sometimes produce the same overhang. Such ends can ligate.
Step 2
Why this answer is correct
The correct answer is A. compatible ligation allow कर सकते हैं / They can allow compatible ligation. Different enzymes can sometimes produce the same overhang. Such ends can ligate.
Step 3
Exam Tip
Different enzymes sometimes same overhang बना सकते हैं। ऐसे ends ligate हो सकते हैं।
A. दो अलग restriction enzymes से directional cloning/Directional cloning with two different restriction enzymes
Step 1
Concept
Two different ends help place the insert in one direction. In exams link directional cloning with orientation control.
Step 2
Why this answer is correct
The correct answer is A. दो अलग restriction enzymes से directional cloning / Directional cloning with two different restriction enzymes. Two different ends help place the insert in one direction. In exams link directional cloning with orientation control.
Step 3
Exam Tip
दो अलग ends insert को एक दिशा में लगाने में मदद करते हैं। परीक्षा में directional cloning को orientation control से जोड़ें।
Bacteria can cut foreign DNA using restriction enzymes. This is a natural defense mechanism.
Step 2
Why this answer is correct
The correct answer is A. bacterial defense against foreign DNA. Bacteria can cut foreign DNA using restriction enzymes. This is a natural defense mechanism.
Step 3
Exam Tip
Bacteria restriction enzymes से foreign DNA को काट सकते हैं। यह natural defense mechanism है।
B. same recognition sequence पर अलग position में cut करने वाले enzymes/Enzymes cutting at different positions within the same recognition sequence
Step 1
Concept
Neoschizomers can recognize the same site but cut at different positions. This can produce different ends.
Step 2
Why this answer is correct
The correct answer is B. same recognition sequence पर अलग position में cut करने वाले enzymes / Enzymes cutting at different positions within the same recognition sequence. Neoschizomers can recognize the same site but cut at different positions. This can produce different ends.
Step 3
Exam Tip
Neoschizomers same site पहचान सकते हैं पर cut position अलग होती है। इससे ends अलग बन सकते हैं।
A. restriction enzymes DNA को specific sites पर काटकर fragments बनाते हैं/Restriction enzymes cut DNA at specific sites to make fragments
Step 1
Concept
Restriction enzymes work like molecular scissors. Sticky or blunt ends are useful in recombinant DNA formation.
Step 2
Why this answer is correct
The correct answer is A. restriction enzymes DNA को specific sites पर काटकर fragments बनाते हैं / Restriction enzymes cut DNA at specific sites to make fragments. Restriction enzymes work like molecular scissors. Sticky or blunt ends are useful in recombinant DNA formation.
Step 3
Exam Tip
Restriction enzymes molecular scissors की तरह काम करते हैं। Sticky या blunt ends recombinant DNA formation में उपयोगी होते हैं।
Restriction enzymes cut DNA at specific sites. In exams remember them as molecular scissors.
Step 2
Why this answer is correct
The correct answer is A. प्रतिबंध एंजाइम / Restriction enzymes. Restriction enzymes cut DNA at specific sites. In exams remember them as molecular scissors.
Step 3
Exam Tip
प्रतिबंध एंजाइम डीएनए को खास स्थानों पर काटते हैं। परीक्षा में इन्हें molecular scissors याद रखें।
A. Insert को सही दिशा में जोड़ने के लिए/To join insert in correct orientation
Step 1
Concept
Two different enzymes make different ends. This makes it easier to control insert direction.
Step 2
Why this answer is correct
The correct answer is A. Insert को सही दिशा में जोड़ने के लिए / To join insert in correct orientation. Two different enzymes make different ends. This makes it easier to control insert direction.
Step 3
Exam Tip
दो अलग enzymes अलग ends बनाते हैं। इससे insert की direction control करना आसान होता है।
Restriction enzymes are called molecular scissors because they cut DNA. DNA ligase performs the opposite joining role.
Step 2
Why this answer is correct
The correct answer is C. DNA ligase. Restriction enzymes are called molecular scissors because they cut DNA. DNA ligase performs the opposite joining role.
Step 3
Exam Tip
Molecular scissors restriction enzymes को कहा जाता है क्योंकि वे DNA काटते हैं। DNA ligase opposite joining role निभाता है।
Cutting DNA at palindromic recognition sites is the role of restriction enzymes. Ligase is a joining enzyme.
Step 2
Why this answer is correct
The correct answer is D. It cuts DNA at palindromic recognition sites. Cutting DNA at palindromic recognition sites is the role of restriction enzymes. Ligase is a joining enzyme.
Step 3
Exam Tip
Palindromic recognition sites पर DNA काटना restriction enzymes का काम है। Ligase joining enzyme है।
D. दो अलग restriction enzymes से अलग सिरे बनाना/Making different ends with two restriction enzymes
Step 1
Concept
Two different ends can reduce the chance of vector self-joining. This is useful in directional cloning.
Step 2
Why this answer is correct
The correct answer is D. दो अलग restriction enzymes से अलग सिरे बनाना / Making different ends with two restriction enzymes. Two different ends can reduce the chance of vector self-joining. This is useful in directional cloning.
Step 3
Exam Tip
दो अलग सिरे vector के अपने आप जुड़ने की संभावना घटा सकते हैं। यह directional cloning में उपयोगी है।
A. दो अलग restriction enzymes से अलग सिरे बनाना/Making different ends with two restriction enzymes
Step 1
Concept
Two different ends can reduce the chance of vector self-joining. This is useful in directional cloning.
Step 2
Why this answer is correct
The correct answer is A. दो अलग restriction enzymes से अलग सिरे बनाना / Making different ends with two restriction enzymes. Two different ends can reduce the chance of vector self-joining. This is useful in directional cloning.
Step 3
Exam Tip
दो अलग ends vector के अपने आप जुड़ने की संभावना घटा सकते हैं। यह directional cloning में उपयोगी है।
A. specific DNA cutting bacterial enzymes useful in cloning
Step 1
Concept
Restriction enzymes are bacteria-linked specific DNA cutters. Remember them with recombinant DNA and cloning.
Step 2
Why this answer is correct
The correct answer is A. specific DNA cutting bacterial enzymes useful in cloning. Restriction enzymes are bacteria-linked specific DNA cutters. Remember them with recombinant DNA and cloning.
Step 3
Exam Tip
Restriction enzymes bacteria से जुड़े specific DNA cutters हैं। इन्हें recombinant DNA और cloning से जोड़कर याद रखें।
A. specific DNA sequences को cut करने वाले bacterial enzymes/Bacterial enzymes that cut specific DNA sequences
Step 1
Concept
This definition gives both source and function. It is the most useful definition for Class 11 exams.
Step 2
Why this answer is correct
The correct answer is A. specific DNA sequences को cut करने वाले bacterial enzymes / Bacterial enzymes that cut specific DNA sequences. This definition gives both source and function. It is the most useful definition for Class 11 exams.
Step 3
Exam Tip
यह definition source और function दोनों बताती है। Class 11 exam में यही सबसे उपयोगी definition है।
Restriction enzyme questions may ask source sequence and end type. Revising them in table form is useful.
Step 2
Why this answer is correct
The correct answer is A. enzyme source recognition sequence end type. Restriction enzyme questions may ask source sequence and end type. Revising them in table form is useful.
Step 3
Exam Tip
Restriction enzyme questions में source sequence और end type पूछे जा सकते हैं। इन्हें table form में revise करना उपयोगी है।
Restriction enzymes are useful in DNA analysis and recombinant DNA. Enzymes like amylase are used for starch digestion.
Step 2
Why this answer is correct
The correct answer is C. starch digestion. Restriction enzymes are useful in DNA analysis and recombinant DNA. Enzymes like amylase are used for starch digestion.
Step 3
Exam Tip
Restriction enzymes DNA analysis और recombinant DNA में उपयोगी हैं। Starch digestion के लिए amylase जैसे enzymes होते हैं।
D. वे मुख्य रूप से glucose synthesis enzyme हैं/They are mainly glucose synthesis enzymes
Step 1
Concept
Restriction enzymes are not glucose synthesis enzymes. Their main role is DNA cutting.
Step 2
Why this answer is correct
The correct answer is D. वे मुख्य रूप से glucose synthesis enzyme हैं / They are mainly glucose synthesis enzymes. Restriction enzymes are not glucose synthesis enzymes. Their main role is DNA cutting.
Step 3
Exam Tip
Restriction enzymes glucose synthesis enzymes नहीं हैं। उनका मुख्य कार्य DNA cutting है।
Neoschizomers can recognize the same sequence but may cut at different positions. This is a terminology-based question.
Step 2
Why this answer is correct
The correct answer is B. neoschizomer. Neoschizomers can recognize the same sequence but may cut at different positions. This is a terminology-based question.
Step 3
Exam Tip
Neoschizomers same sequence recognize कर सकते हैं लेकिन cut position अलग हो सकती है। यह terminology-based question है।
A. Restriction enzymes bacteria से जुड़े DNA cutting tools हैं/Restriction enzymes are bacteria-linked DNA cutting tools
Step 1
Concept
The source of restriction enzymes is bacteria and the function is DNA cutting. This is the most important easy-level summary.
Step 2
Why this answer is correct
The correct answer is A. Restriction enzymes bacteria से जुड़े DNA cutting tools हैं / Restriction enzymes are bacteria-linked DNA cutting tools. The source of restriction enzymes is bacteria and the function is DNA cutting. This is the most important easy-level summary.
Step 3
Exam Tip
Restriction enzymes का source bacteria और function DNA cutting है। यही easy level का सबसे important summary है।
A. कई restriction enzymes palindromic DNA sites पहचानते हैं/Many restriction enzymes recognize palindromic DNA sites
Step 1
Concept
Many recognition sites are palindromic. This is linked with sequence recognition by restriction enzymes.
Step 2
Why this answer is correct
The correct answer is A. कई restriction enzymes palindromic DNA sites पहचानते हैं / Many restriction enzymes recognize palindromic DNA sites. Many recognition sites are palindromic. This is linked with sequence recognition by restriction enzymes.
Step 3
Exam Tip
कई recognition sites palindromic होते हैं। यह restriction enzymes की sequence recognition से जुड़ा है।
Restriction enzymes cut phosphodiester bonds in the sugar-phosphate backbone of DNA. This fact is linked with DNA structure.
Step 2
Why this answer is correct
The correct answer is A. phosphodiester bond. Restriction enzymes cut phosphodiester bonds in the sugar-phosphate backbone of DNA. This fact is linked with DNA structure.
Step 3
Exam Tip
Restriction enzymes DNA के sugar-phosphate backbone में phosphodiester bonds काटते हैं। यह DNA structure से जुड़ा fact है।
A. दोनों restriction enzymes हैं/Both are restriction enzymes
Step 1
Concept
HindIII and EcoRI are both DNA-cutting restriction enzymes. Their recognition sequences are different.
Step 2
Why this answer is correct
The correct answer is A. दोनों restriction enzymes हैं / Both are restriction enzymes. HindIII and EcoRI are both DNA-cutting restriction enzymes. Their recognition sequences are different.
Step 3
Exam Tip
HindIII और EcoRI दोनों DNA cutting restriction enzymes हैं। इनके recognition sequences अलग हैं।
A. enzyme name source recognition sequence और end type साथ याद करें/Remember enzyme name source recognition sequence and end type together
Step 1
Concept
Questions on restriction enzymes may ask source sequence and sticky or blunt ends. Revise them together.
Step 2
Why this answer is correct
The correct answer is A. enzyme name source recognition sequence और end type साथ याद करें / Remember enzyme name source recognition sequence and end type together. Questions on restriction enzymes may ask source sequence and sticky or blunt ends. Revise them together.
Step 3
Exam Tip
Restriction enzymes के प्रश्नों में source sequence और sticky या blunt ends पूछे जा सकते हैं। इन्हें एक साथ revise करें।
A. दोनों strands पर opposite direction में same पढ़ा जा सकता है/It can read same on both strands in opposite direction
Step 1
Concept
Many restriction enzymes recognize palindromic DNA sequences. This is a common feature of recognition sites.
Step 2
Why this answer is correct
The correct answer is A. दोनों strands पर opposite direction में same पढ़ा जा सकता है / It can read same on both strands in opposite direction. Many restriction enzymes recognize palindromic DNA sequences. This is a common feature of recognition sites.
Step 3
Exam Tip
कई restriction enzymes palindromic DNA sequences पहचानते हैं। यह recognition site का common feature है।
A. DNA fragments का pattern बनाना/Creating a pattern of DNA fragments
Step 1
Concept
Specific cutting creates a DNA fragment pattern. This can be useful in DNA comparison.
Step 2
Why this answer is correct
The correct answer is A. DNA fragments का pattern बनाना / Creating a pattern of DNA fragments. Specific cutting creates a DNA fragment pattern. This can be useful in DNA comparison.
Step 3
Exam Tip
Specific cutting से DNA fragment pattern बनता है। यह DNA comparison में उपयोगी हो सकता है।
