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Biotechnology Restriction Enzymes MCQ Questions for Class 11 Science

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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 311/345 Easy Biotechnology Principles of Biotechnology Restriction Enzymes Class 11 Level 17

कौन सा option restriction enzyme का source और role दोनों बताता है?

Which option gives both source and role of restriction enzymes?

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A. bacteria से मिले और DNA cut करते हैंFound in bacteria and cut DNA

Explanation

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Restriction enzymes bacterial origin के DNA cutting tools हैं। यह easy-level summary सबसे महत्वपूर्ण है। / Restriction enzymes are bacterial-origin DNA cutting tools. This easy-level summary is most important.

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Question 312/345 Easy Biotechnology Principles of Biotechnology Restriction Enzymes Class 11 Level 17

कौन सा statement restriction enzyme के बारे में सही नहीं है?

Which statement is not correct about restriction enzymes?

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D. वे मुख्य रूप से glucose synthesis enzyme हैंThey are mainly glucose synthesis enzymes

Explanation

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Restriction enzymes glucose synthesis enzymes नहीं हैं। उनका मुख्य कार्य DNA cutting है। / Restriction enzymes are not glucose synthesis enzymes. Their main role is DNA cutting.

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Question 313/345 Easy Biotechnology Principles of Biotechnology Restriction Enzymes Class 11 Level 17

किस option में restriction enzyme का correct application है?

Which option is a correct application of restriction enzymes?

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A. gene cloning

Explanation

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Gene cloning में restriction enzymes vector और insert DNA को cut करने में उपयोगी हैं। यह biotechnology application है। / In gene cloning restriction enzymes help cut vector and insert DNA. This is a biotechnology application.

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Question 314/345 Easy Biotechnology Principles of Biotechnology Restriction Enzymes Class 11 Level 17

किस option में restriction enzyme का incorrect application है?

Which option is an incorrect application of restriction enzymes?

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Correct Answer

C. starch digestion

Explanation

Simple Explanation

Restriction enzymes DNA analysis और recombinant DNA में उपयोगी हैं। Starch digestion के लिए amylase जैसे enzymes होते हैं। / Restriction enzymes are useful in DNA analysis and recombinant DNA. Enzymes like amylase are used for starch digestion.

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Question 315/345 Easy Biotechnology Principles of Biotechnology Restriction Enzymes Class 11 Level 17

एक plasmid map में कई restriction sites एक छोटे region में हैं। उस region को क्या कहा जा सकता है?

A plasmid map has many restriction sites in a small region. What can that region be called?

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A. multiple cloning site

Explanation

Simple Explanation

Multiple cloning site में कई restriction sites होती हैं। यह insert DNA cloning में flexibility देता है। / A multiple cloning site has many restriction sites. It provides flexibility in insert DNA cloning.

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Question 316/345 Easy Biotechnology Principles of Biotechnology Restriction Enzymes Class 11 Level 17

यदि plasmid और insert को दो अलग enzymes से cut किया जाए तो क्या benefit हो सकता है?

If plasmid and insert are cut with two different enzymes what can be a benefit?

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A. directional cloning आसान होनाEasier directional cloning

Explanation

Simple Explanation

दो अलग enzymes अलग ends बना सकते हैं। इससे insert orientation control बेहतर हो सकता है। / Two different enzymes can create different ends. This can improve insert orientation control.

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Question 317/345 Easy Biotechnology Principles of Biotechnology Restriction Enzymes Class 11 Level 17

restriction digestion के बाद expected smaller band नहीं दिखा। कौन सा simple reason हो सकता है?

After restriction digestion the expected smaller band is not visible. What can be a simple reason?

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A. कम DNA या weak stainingLow DNA or weak staining

Explanation

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कम DNA या weak staining से छोटे band देखना कठिन हो सकता है। Practical interpretation में sample amount याद रखें। / Low DNA or weak staining can make small bands hard to see. Remember sample amount in practical interpretation.

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Question 318/345 Easy Biotechnology Principles of Biotechnology Restriction Enzymes Class 11 Level 17

restriction digestion में extra uncut band दिखना किसकी ओर संकेत कर सकता है?

An extra uncut band in restriction digestion can indicate what?

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A. partial digestion

Explanation

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Uncut band का अर्थ हो सकता है कि कुछ DNA molecules cut नहीं हुए। यह partial digestion का संकेत हो सकता है। / An uncut band may mean some DNA molecules were not cut. This can indicate partial digestion.

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Question 319/345 Easy Biotechnology Principles of Biotechnology Restriction Enzymes Class 11 Level 17

enzyme star activity से result में क्या समस्या हो सकती है?

What problem can enzyme star activity cause in results?

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A. unexpected extra cuts

Explanation

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Star activity non-specific cutting करा सकती है। इससे unexpected fragments मिल सकते हैं। / Star activity can cause non-specific cutting. This may produce unexpected fragments.

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Question 320/345 Easy Biotechnology Principles of Biotechnology Restriction Enzymes Class 11 Level 17

किस option में buffer का role सही बताया गया है?

Which option correctly describes the role of buffer?

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A. enzyme के लिए proper pH और ionic condition देनाGiving proper pH and ionic condition for enzyme

Explanation

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Buffer reaction environment को enzyme activity के लिए suitable बनाता है। गलत buffer digestion को प्रभावित कर सकता है। / Buffer makes the reaction environment suitable for enzyme activity. Wrong buffer can affect digestion.

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