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Biotechnology Restriction Enzymes MCQ Questions for Class 11 Science

Practice focused topic-wise MCQs with answers and explanations for quick revision and exam preparation.

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01 Practice Topic Genetic Engineering 200 MCQs 02 Practice Topic Bioprocess Engineering 300 MCQs 03 Practice Topic Ligase Enzymes 290 MCQs 04 Practice Topic Cloning Vectors 295 MCQs 05 Practice Topic Competent Host 445 MCQs

Restriction Enzymes Practice Questions

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Question 331/345 Easy Biotechnology Principles of Biotechnology Restriction Enzymes Class 11 Level 17

कौन सा option insert orientation problem को कम कर सकता है?

Which option can reduce the insert orientation problem?

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Correct Answer

A. two different restriction enzymes use करनाUsing two different restriction enzymes

Explanation

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Two different enzymes अलग ends बनाते हैं। इससे insert एक preferred direction में लग सकता है। / Two different enzymes create different ends. This can place the insert in a preferred direction.

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Question 332/345 Easy Biotechnology Principles of Biotechnology Restriction Enzymes Class 11 Level 17

किस option में restriction enzyme और plasmid opening का correct link है?

Which option correctly links restriction enzyme and plasmid opening?

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Correct Answer

A. enzyme plasmid को selected site पर cut कर सकता हैEnzyme can cut plasmid at a selected site

Explanation

Simple Explanation

Plasmid cloning में restriction enzyme selected site पर cut कर सकता है। इससे insert लगाने की जगह बनती है। / In plasmid cloning a restriction enzyme can cut at a selected site. This creates space for inserting DNA.

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Question 333/345 Easy Biotechnology Principles of Biotechnology Restriction Enzymes Class 11 Level 17

कौन सा option DNA ligase के role को restriction enzyme के बाद सही बताता है?

Which option correctly describes the role of DNA ligase after restriction enzyme?

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Correct Answer

A. cut fragments को covalent bond से जोड़नाJoining cut fragments by covalent bonds

Explanation

Simple Explanation

DNA ligase phosphodiester bonds बनाकर DNA fragments जोड़ता है। Restriction enzyme cutting के लिए होता है। / DNA ligase joins DNA fragments by forming phosphodiester bonds. Restriction enzyme is for cutting.

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Question 334/345 Easy Biotechnology Principles of Biotechnology Restriction Enzymes Class 11 Level 17

restriction site absent होने पर gel में क्या दिख सकता है?

What may be seen in a gel if the restriction site is absent?

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Correct Answer

A. uncut DNA band

Explanation

Simple Explanation

Site absent होने पर enzyme cut नहीं करेगा। इसलिए original uncut DNA band दिख सकता है। / If the site is absent the enzyme will not cut. Therefore the original uncut DNA band may appear.

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Question 335/345 Easy Biotechnology Principles of Biotechnology Restriction Enzymes Class 11 Level 17

यदि restriction enzyme बहुत कम मात्रा में डाला गया तो क्या हो सकता है?

If too little restriction enzyme is added what can happen?

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Correct Answer

A. digestion incomplete हो सकता हैDigestion may be incomplete

Explanation

Simple Explanation

कम enzyme से सभी sites पर cut नहीं हो सकता। इससे partial digestion pattern आ सकता है। / With too little enzyme all sites may not be cut. This can produce a partial digestion pattern.

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Question 336/345 Easy Biotechnology Principles of Biotechnology Restriction Enzymes Class 11 Level 17

किस option में restriction enzyme के लिए correct reaction requirement है?

Which option is a correct reaction requirement for restriction enzyme?

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Correct Answer

A. suitable buffer और active enzymeSuitable buffer and active enzyme

Explanation

Simple Explanation

Active enzyme और suitable buffer restriction digestion के लिए जरूरी हैं। Practical MCQs में conditions जरूर देखें। / Active enzyme and suitable buffer are needed for restriction digestion. Check conditions in practical MCQs.

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Question 337/345 Easy Biotechnology Principles of Biotechnology Restriction Enzymes Class 11 Level 17

किस option में restriction enzymes को पढ़ने का best table heading है?

Which option is the best table heading for studying restriction enzymes?

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Correct Answer

A. enzyme source recognition sequence end type

Explanation

Simple Explanation

Restriction enzyme questions में source sequence और end type पूछे जा सकते हैं। इन्हें table form में revise करना उपयोगी है। / Restriction enzyme questions may ask source sequence and end type. Revising them in table form is useful.

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Question 338/345 Easy Biotechnology Principles of Biotechnology Restriction Enzymes Class 11 Level 17

कौन सा option type II restriction enzymes के बारे में सही है?

Which option is correct about Type II restriction enzymes?

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Correct Answer

A. वे defined recognition sites के पास cut करते हैंThey cut near defined recognition sites

Explanation

Simple Explanation

Type II enzymes defined sites पर cut करते हैं। इसीलिए biotechnology में उन्हें अधिक उपयोगी माना जाता है। / Type II enzymes cut at defined sites. That is why they are considered more useful in biotechnology.

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Question 339/345 Easy Biotechnology Principles of Biotechnology Restriction Enzymes Class 11 Level 17

किस option में molecular scissors term का accurate reason है?

Which option gives the accurate reason for the term molecular scissors?

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Correct Answer

A. DNA molecules को cut करते हैंThey cut DNA molecules

Explanation

Simple Explanation

Molecular scissors शब्द DNA cutting ability के कारण दिया गया है। यह restriction enzymes का popular नाम है। / The term molecular scissors is due to their DNA cutting ability. It is a popular name for restriction enzymes.

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Question 340/345 Easy Biotechnology Principles of Biotechnology Restriction Enzymes Class 11 Level 17

restriction enzyme से बने compatible sticky ends को stable recombinant DNA में बदलने के लिए क्या चाहिए?

What is needed to convert compatible sticky ends made by restriction enzyme into stable recombinant DNA?

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Correct Answer

A. DNA ligase

Explanation

Simple Explanation

Compatible sticky ends पहले pair कर सकते हैं। Stable joining के लिए DNA ligase phosphodiester bonds बनाता है। / Compatible sticky ends can pair first. DNA ligase forms phosphodiester bonds for stable joining.

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