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Biotechnology Restriction Enzymes MCQ Questions for Class 11 Science

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Restriction Enzymes Practice Questions

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Question 291/345 Easy Biotechnology Principles of Biotechnology Restriction Enzymes Class 11 Level 16

restriction enzyme और exonuclease में basic difference क्या है?

What is the basic difference between a restriction enzyme and an exonuclease?

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A. restriction enzyme अंदर specific cut कर सकता हैRestriction enzyme can cut internally at specific sites

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Restriction enzymes endonucleases की तरह DNA के अंदर cut करते हैं। Exonucleases nucleic acid ends से nucleotides हटाते हैं। / Restriction enzymes cut internally like endonucleases. Exonucleases remove nucleotides from nucleic acid ends.

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Question 292/345 Easy Biotechnology Principles of Biotechnology Restriction Enzymes Class 11 Level 16

कौन सा option restriction enzyme topic का core formula-like rule बताता है?

Which option gives a core rule-like idea in restriction enzyme topic?

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A. linear DNA fragments equal cuts plus one

Explanation

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Linear DNA में complete digestion के बाद fragments cuts से एक अधिक होते हैं। इसे simple mapping MCQs में apply करें। / In linear DNA after complete digestion fragments are one more than cuts. Apply this in simple mapping MCQs.

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Question 293/345 Easy Biotechnology Principles of Biotechnology Restriction Enzymes Class 11 Level 16

circular DNA mapping में simple rule क्या है?

What is the simple rule in circular DNA mapping?

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A. complete digestion में fragments cuts के बराबरIn complete digestion fragments equal cuts

Explanation

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Circular DNA में complete digestion पर fragments की संख्या cut sites के बराबर होती है। यह plasmid questions में useful है। / In circular DNA after complete digestion fragments equal the number of cut sites. This is useful in plasmid questions.

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Question 294/345 Easy Biotechnology Principles of Biotechnology Restriction Enzymes Class 11 Level 16

किस option में restriction enzyme और palindromic site का correct link है?

Which option correctly links restriction enzyme and palindromic site?

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A. many enzymes recognize palindromic DNA sequences

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कई restriction enzymes palindromic DNA sequences को recognition sites की तरह पहचानते हैं। यह basic concept है। / Many restriction enzymes recognize palindromic DNA sequences as recognition sites. This is a basic concept.

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Question 295/345 Easy Biotechnology Principles of Biotechnology Restriction Enzymes Class 11 Level 16

कौन सा अंतिम revision point सबसे सही है?

Which final revision point is most correct?

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A. Restriction enzymes bacteria से जुड़े DNA cutting tools हैंRestriction enzymes are bacteria-linked DNA cutting tools

Explanation

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Restriction enzymes का source bacteria और function DNA cutting है। यही easy level का सबसे important summary है। / The source of restriction enzymes is bacteria and the function is DNA cutting. This is the most important easy-level summary.

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Question 296/345 Easy Biotechnology Principles of Biotechnology Restriction Enzymes Class 11 Level 17

एक रैखिक डीएनए में चार restriction sites हैं। complete digestion के बाद कितने fragments बनेंगे?

A linear DNA has four restriction sites. How many fragments will form after complete digestion?

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B. पाँचFive

Explanation

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Linear DNA में fragments cuts से एक अधिक होते हैं। चार cuts से पाँच fragments बनेंगे। / In linear DNA fragments are one more than cuts. Four cuts form five fragments.

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Question 297/345 Easy Biotechnology Principles of Biotechnology Restriction Enzymes Class 11 Level 17

एक circular plasmid में चार restriction sites हैं। complete digestion के बाद कितने fragments होंगे?

A circular plasmid has four restriction sites. How many fragments will form after complete digestion?

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C. चारFour

Explanation

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Circular DNA में complete digestion पर fragments cuts के बराबर होते हैं। चार cuts से चार fragments मिलेंगे। / In circular DNA after complete digestion fragments equal cuts. Four cuts give four fragments.

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Question 298/345 Easy Biotechnology Principles of Biotechnology Restriction Enzymes Class 11 Level 17

यदि linear DNA में एक restriction site है तो कितने fragments मिलेंगे?

If linear DNA has one restriction site how many fragments will be obtained?

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D. दोTwo

Explanation

Simple Explanation

Linear DNA में एक cut दो fragments देता है। इसे cuts plus one rule से याद करें। / One cut in linear DNA gives two fragments. Remember it by the cuts plus one rule.

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Question 299/345 Easy Biotechnology Principles of Biotechnology Restriction Enzymes Class 11 Level 17

यदि circular plasmid में एक restriction site है तो digestion के बाद क्या मिलेगा?

If a circular plasmid has one restriction site what will be obtained after digestion?

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A. एक linear DNA moleculeOne linear DNA molecule

Explanation

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Circular plasmid में एक cut उसे linear DNA molecule बना देता है। यह plasmid digestion का basic rule है। / One cut in a circular plasmid makes one linear DNA molecule. This is a basic rule of plasmid digestion.

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Question 300/345 Easy Biotechnology Principles of Biotechnology Restriction Enzymes Class 11 Level 17

restriction enzyme से cut DNA को gel में क्यों चलाया जाता है?

Why is restriction-cut DNA run on a gel?

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B. DNA fragments को size के आधार पर अलग करने के लिएTo separate DNA fragments by size

Explanation

Simple Explanation

Gel electrophoresis DNA fragments को size के आधार पर अलग करता है। इससे restriction pattern दिखता है। / Gel electrophoresis separates DNA fragments by size. This shows the restriction pattern.

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