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Biotechnology Isolation of DNA MCQ Questions for Class 11 General

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01 Practice Topic Cutting of DNA 592 MCQs

Isolation of DNA Practice Questions

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Question 251/294 Easy Biotechnology Processes of Recombinant DNA Technology Isolation of DNA Class 11 Level 44

Mucilaginous plant tissue से DNA निकालते समय मुख्य challenge क्या हो सकता है?

What can be a main challenge while extracting DNA from mucilaginous plant tissue?

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B. polysaccharide contamination

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Mucilaginous tissues में polysaccharides अधिक हो सकते हैं। ये DNA purification और PCR में बाधा डाल सकते हैं। / Mucilaginous tissues can have high polysaccharides. These can interfere with DNA purification and PCR.

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Question 252/294 Easy Biotechnology Processes of Recombinant DNA Technology Isolation of DNA Class 11 Level 44

Blood sample से DNA isolation में कौन सी cells DNA source होती हैं?

In DNA isolation from blood which cells are the DNA source?

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C. white blood cells

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Mammalian mature red blood cells में nucleus नहीं होता। White blood cells DNA source होती हैं। / Mammalian mature red blood cells lack nucleus. White blood cells are the DNA source.

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Question 253/294 Easy Biotechnology Processes of Recombinant DNA Technology Isolation of DNA Class 11 Level 44

मानव mature RBC DNA isolation के लिए अच्छे source क्यों नहीं हैं?

Why are human mature RBCs not a good source for DNA isolation?

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D. उनमें nucleus नहीं होताThey lack nucleus

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Mammalian mature RBCs nucleus नहीं रखते इसलिए genomic DNA source नहीं होते। WBCs बेहतर source हैं। / Mammalian mature RBCs lack nucleus so they are not a genomic DNA source. WBCs are better source.

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Question 254/294 Easy Biotechnology Processes of Recombinant DNA Technology Isolation of DNA Class 11 Level 44

Cheek cell DNA isolation में कौन सा material source होता है?

What is the source material in cheek cell DNA isolation?

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A. buccal epithelial cells

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Cheek swab buccal epithelial cells देता है। इन cells में nucleus और DNA होता है। / A cheek swab gives buccal epithelial cells. These cells have nuclei and DNA.

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Question 255/294 Easy Biotechnology Processes of Recombinant DNA Technology Isolation of DNA Class 11 Level 44

Hair sample से DNA isolation में root क्यों important है?

Why is the root important in DNA isolation from hair sample?

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A. root में living cells और DNA हो सकता हैRoot may contain living cells and DNA

Explanation

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Hair shaft में nuclear DNA कम या degraded हो सकता है। Root cells DNA source हो सकती हैं। / The hair shaft can have little or degraded nuclear DNA. Root cells can be a DNA source.

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Question 256/294 Easy Biotechnology Processes of Recombinant DNA Technology Isolation of DNA Class 11 Level 44

DNA isolation में sample size बहुत ज्यादा होने से क्या समस्या हो सकती है?

What problem can occur if sample size is too large in DNA isolation?

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A. buffer capacity overload हो सकती हैBuffer capacity can be overloaded

Explanation

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बहुत ज्यादा sample lysis और purification को inefficient बना सकता है। Protocol के अनुसार sample amount रखें। / Too much sample can make lysis and purification inefficient. Keep sample amount according to protocol.

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Question 257/294 Easy Biotechnology Processes of Recombinant DNA Technology Isolation of DNA Class 11 Level 44

Sample amount बहुत कम हो तो क्या समस्या हो सकती है?

What problem can occur if sample amount is too low?

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A. DNA yield कम हो सकती हैDNA yield may be low

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कम sample से DNA amount कम मिल सकता है। Low-yield samples में careful recovery जरूरी है। / Low sample amount can give less DNA. Careful recovery is needed for low-yield samples.

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Question 258/294 Easy Biotechnology Processes of Recombinant DNA Technology Isolation of DNA Class 11 Level 44

DNA extraction में incubation time का क्या महत्व है?

What is the importance of incubation time in DNA extraction?

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A. lysis और enzyme action complete करने में मददHelps complete lysis and enzyme action

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Proper incubation lysis और protein digestion बेहतर कर सकता है। Too short time low yield दे सकता है। / Proper incubation can improve lysis and protein digestion. Too short time can give low yield.

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Question 259/294 Easy Biotechnology Processes of Recombinant DNA Technology Isolation of DNA Class 11 Level 44

Lysis incubation बहुत लंबा होने पर क्या risk हो सकता है?

What can be the risk if lysis incubation is too long?

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A. DNA degradation risk बढ़ सकता हैRisk of DNA degradation can increase

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बहुत लंबी incubation और improper conditions DNA quality घटा सकती हैं। Protocol timing follow करें। / Very long incubation and improper conditions can reduce DNA quality. Follow protocol timing.

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Question 260/294 Easy Biotechnology Processes of Recombinant DNA Technology Isolation of DNA Class 11 Level 44

Temperature control DNA isolation में क्यों जरूरी है?

Why is temperature control necessary in DNA isolation?

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A. nuclease activity और enzyme steps manage करने के लिएTo manage nuclease activity and enzyme steps

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कुछ steps cold conditions चाहते हैं और कुछ enzyme steps specific temperature चाहते हैं। Temperature DNA quality पर असर डालता है। / Some steps need cold conditions and some enzyme steps need specific temperature. Temperature affects DNA quality.

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