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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 271/294 Easy Biotechnology Processes of Recombinant DNA Technology Isolation of DNA Class 11 Level 44

DNA isolation में separate work areas कब helpful हो सकते हैं?

When can separate work areas be helpful in DNA isolation?

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A. contamination-sensitive work मेंIn contamination-sensitive work

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Pre-PCR और post-PCR areas अलग रखने से contamination risk घट सकता है। Sensitive DNA work में यह useful है। / Keeping pre-PCR and post-PCR areas separate can reduce contamination risk. This is useful in sensitive DNA work.

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Question 272/294 Easy Biotechnology Processes of Recombinant DNA Technology Isolation of DNA Class 11 Level 44

DNA extraction blank control positive आए तो क्या संकेत है?

If a DNA extraction blank control is positive what does it indicate?

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A. reagent या handling contaminationReagent or handling contamination

Explanation

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Blank में DNA नहीं होना चाहिए। Positive signal contamination की ओर संकेत करता है। / A blank should not contain DNA. A positive signal indicates contamination.

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Question 273/294 Easy Biotechnology Processes of Recombinant DNA Technology Isolation of DNA Class 11 Level 44

Positive extraction control fail हो जाए तो क्या suspect करेंगे?

If a positive extraction control fails what should be suspected?

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A. method या reagent problemMethod or reagent problem

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Known sample से DNA मिलना चाहिए। Fail होने पर extraction method या reagents check करें। / A known sample should yield DNA. If it fails check extraction method or reagents.

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Question 274/294 Easy Biotechnology Processes of Recombinant DNA Technology Isolation of DNA Class 11 Level 44

DNA isolation में internal standard क्यों useful हो सकता है?

Why can an internal standard be useful in DNA isolation?

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A. extraction efficiency monitor करने के लिएTo monitor extraction efficiency

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Internal standard process performance का संकेत दे सकता है। इससे comparison और troubleshooting आसान होती है। / An internal standard can indicate process performance. This makes comparison and troubleshooting easier.

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Question 275/294 Easy Biotechnology Processes of Recombinant DNA Technology Isolation of DNA Class 11 Level 44

DNA isolation में inhibitor removal क्यों जरूरी है?

Why is inhibitor removal necessary in DNA isolation?

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A. downstream PCR और enzyme reactions के लिएFor downstream PCR and enzyme reactions

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Inhibitors PCR और restriction enzymes को रोक सकते हैं। Clean DNA reaction success बढ़ाता है। / Inhibitors can stop PCR and restriction enzymes. Clean DNA increases reaction success.

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Question 276/294 Easy Biotechnology Processes of Recombinant DNA Technology Isolation of DNA Class 11 Level 44

DNA isolation में humic acids कब problem हो सकते हैं?

When can humic acids be a problem in DNA isolation?

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A. soil या environmental samples मेंIn soil or environmental samples

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Soil samples में humic acids PCR inhibitors हो सकते हैं। Special cleanup की जरूरत हो सकती है। / In soil samples humic acids can be PCR inhibitors. Special cleanup may be needed.

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Question 277/294 Easy Biotechnology Processes of Recombinant DNA Technology Isolation of DNA Class 11 Level 44

Soil DNA extraction में inhibitor समस्या को कैसे घटाया जा सकता है?

How can inhibitor problems be reduced in soil DNA extraction?

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A. special cleanup steps सेBy special cleanup steps

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Soil samples में humic substances हो सकते हैं। Cleanup steps inhibitors घटाते हैं। / Soil samples may contain humic substances. Cleanup steps reduce inhibitors.

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Question 278/294 Easy Biotechnology Processes of Recombinant DNA Technology Isolation of DNA Class 11 Level 44

DNA isolation में food sample से क्या challenge हो सकता है?

What challenge can occur with food samples in DNA isolation?

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A. processed sample में DNA fragmented हो सकता हैDNA may be fragmented in processed sample

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Processing heat और chemicals DNA को degrade कर सकते हैं। Extraction method sample type के अनुसार चुनें। / Processing heat and chemicals can degrade DNA. Choose extraction method according to sample type.

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Question 279/294 Easy Biotechnology Processes of Recombinant DNA Technology Isolation of DNA Class 11 Level 44

Forensic DNA samples में contamination control क्यों बहुत जरूरी है?

Why is contamination control very important in forensic DNA samples?

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A. small DNA amounts में गलत profile आ सकता हैWrong profile can occur with small DNA amounts

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Forensic samples में DNA amount कम हो सकता है। Contamination result को गलत कर सकती है। / Forensic samples can have low DNA amount. Contamination can make the result wrong.

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Question 280/294 Easy Biotechnology Processes of Recombinant DNA Technology Isolation of DNA Class 11 Level 44

DNA isolation में low template samples के लिए क्या practice useful है?

What practice is useful for low template samples in DNA isolation?

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A. low-bind tubes और careful pipettingLow-bind tubes and careful pipetting

Explanation

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Low DNA amount में sample loss बड़ा issue होता है। Low-bind tubes और careful handling recovery बचाते हैं। / In low DNA amount sample loss is a major issue. Low-bind tubes and careful handling preserve recovery.

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