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Biotechnology Competent Host 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 Restriction Enzymes 345 MCQs 04 Practice Topic Ligase Enzymes 290 MCQs 05 Practice Topic Cloning Vectors 295 MCQs

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Question 181/445 Easy Biotechnology Principles of Biotechnology Competent Host Class 11 Level 33

Bacterial promoter mammalian host में हमेशा क्यों काम नहीं करता?

Why does a bacterial promoter not always work in a mammalian host?

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A. Transcription machinery अलग होती हैTranscription machinery is different

Explanation

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Different hosts अलग promoters recognize करते हैं। इसलिए expression vector के elements host-specific हो सकते हैं। / Different hosts recognize different promoters. Therefore expression vector elements can be host-specific.

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Question 182/445 Easy Biotechnology Principles of Biotechnology Competent Host Class 11 Level 33

Plant host में herbicide marker किसलिए useful हो सकता है?

Why can a herbicide marker be useful in a plant host?

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A. Transformed plant cells select करने के लिएTo select transformed plant cells

Explanation

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Plant transformation में selection marker host और culture condition के अनुसार चुना जाता है। Herbicide resistance भी selection में मदद कर सकता है। / In plant transformation the selection marker is chosen according to host and culture condition. Herbicide resistance can also help selection.

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Question 183/445 Easy Biotechnology Principles of Biotechnology Competent Host Class 11 Level 33

Yeast transformation में selectable marker किस प्रकार का हो सकता है?

What type of selectable marker can be used in yeast transformation?

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A. Nutritional marker या drug resistance markerNutritional marker or drug resistance marker

Explanation

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Yeast में auxotrophic या drug resistance markers use हो सकते हैं। Marker host genotype पर निर्भर करता है। / Yeast can use auxotrophic or drug resistance markers. The marker depends on host genotype.

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Question 184/445 Easy Biotechnology Principles of Biotechnology Competent Host Class 11 Level 33

Auxotrophic marker का सरल अर्थ क्या है?

What is the simple meaning of an auxotrophic marker?

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A. Nutrient requirement को selection में उपयोग करनाUsing nutrient requirement in selection

Explanation

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Auxotrophic host किसी nutrient के बिना grow नहीं करता। Marker growth ability restore कर सकता है। / An auxotrophic host does not grow without a nutrient. A marker can restore growth ability.

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Question 185/445 Easy Biotechnology Principles of Biotechnology Competent Host Class 11 Level 33

Mammalian cell screening bacterial colony screening से कैसे अलग हो सकती है?

How can mammalian cell screening differ from bacterial colony screening?

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A. Mammalian cells अक्सर culture wells में grow होती हैंMammalian cells often grow in culture wells

Explanation

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Mammalian cells bacterial colonies की तरह simple agar plate colonies नहीं बनातीं। Their culture system is different. / Mammalian cells do not form simple agar plate colonies like bacteria. Their culture system is different.

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Question 186/445 Easy Biotechnology Principles of Biotechnology Competent Host Class 11 Level 33

Secretory expression system का लाभ क्या हो सकता है?

What can be a benefit of a secretory expression system?

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A. Protein purification आसान हो सकती हैProtein purification can become easier

Explanation

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यदि protein medium में secreted हो तो purification आसान हो सकती है। यह expression design में useful point है। / If protein is secreted into the medium purification can become easier. This is a useful point in expression design.

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Question 187/445 Easy Biotechnology Principles of Biotechnology Competent Host Class 11 Level 33

Chaperone proteins expression host में क्यों मदद कर सकते हैं?

Why can chaperone proteins help in an expression host?

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A. Protein folding में सहायता के लिएTo help protein folding

Explanation

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Chaperones recombinant protein folding में मदद कर सकते हैं। इससे soluble protein yield बेहतर हो सकती है। / Chaperones can help recombinant protein folding. This can improve soluble protein yield.

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Question 188/445 Easy Biotechnology Principles of Biotechnology Competent Host Class 11 Level 33

Inclusion bodies किसका संकेत हो सकती हैं?

Inclusion bodies can indicate what?

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A. Insoluble protein aggregates

Explanation

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कुछ expressed proteins insoluble aggregates बना सकते हैं। ऐसे aggregates को inclusion bodies कहते हैं। / Some expressed proteins can form insoluble aggregates. Such aggregates are called inclusion bodies.

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Question 189/445 Easy Biotechnology Principles of Biotechnology Competent Host Class 11 Level 33

Lower expression temperature किसमें मदद कर सकता है?

Lower expression temperature can help in what?

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A. Protein folding और solubilityProtein folding and solubility

Explanation

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कम temperature कुछ proteins को बेहतर fold होने में मदद कर सकता है। इससे inclusion bodies कम हो सकती हैं। / Lower temperature can help some proteins fold better. This can reduce inclusion bodies.

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Question 190/445 Easy Biotechnology Principles of Biotechnology Competent Host Class 11 Level 33

Protein purification tag का मुख्य उपयोग क्या है?

What is the main use of a protein purification tag?

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A. Recombinant protein को पहचानना और purify करनाIdentifying and purifying recombinant protein

Explanation

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His-tag जैसे tags protein purification और detection में मदद करते हैं। यह expression vector design में common है। / Tags like His-tag help in protein purification and detection. This is common in expression vector design.

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