Practice focused topic-wise MCQs with answers and explanations for quick revision and exam preparation.
Difficulty select karke sirf is topic ke focused MCQs practice karein. Score, timer aur explanations student-friendly flow me milenge.
Showing 341-350 of 445 questions.
What is constitutive expression?
A. Gene का लगातार express होनाContinuous expression of a gene
Constitutive promoter gene को लगातार express करा सकता है। Toxic genes के लिए यह risky हो सकता है। / A constitutive promoter can express a gene continuously. This can be risky for toxic genes.
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What is the main purpose of biosafety in competent host work?
A. Safe handling और containmentSafe handling and containment
Modified cells को safe guidelines के अनुसार handle करना चाहिए। Biosafety lab और environment protection से जुड़ी है। / Modified cells should be handled according to safe guidelines. Biosafety relates to lab and environmental protection.
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Why should a genetically modified host not be released into the open environment?
A. Environmental safety के लिए containment जरूरी हैContainment is needed for environmental safety
GM host को controlled conditions में रखना चाहिए। Accidental release biosafety concern बन सकता है। / A GM host should be kept under controlled conditions. Accidental release can become a biosafety concern.
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Why is competent host waste inactivated?
A. Live modified cells को खत्म करने के लिएTo eliminate live modified cells
Biological waste में live modified cells हो सकती हैं। Inactivation safe disposal का हिस्सा है। / Biological waste may contain live modified cells. Inactivation is part of safe disposal.
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Why is documentation needed in competent host experiments?
A. Traceability और reproducibility के लिएFor traceability and reproducibility
Records strain plasmid marker और result track करते हैं। इससे experiment repeat और verify हो सकता है। / Records track strain plasmid marker and result. This allows the experiment to be repeated and verified.
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What is the best revision point of Level 36 Competent Host?
A. Competence uptake selection screening और safety linked हैंCompetence uptake selection screening and safety are linked
Competent host workflow DNA uptake से clone confirmation तक चलता है। Safety और records भी important हैं। / The competent host workflow goes from DNA uptake to clone confirmation. Safety and records are also important.
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On what can transformation success in a competent host depend?
A. cell competence और DNA qualityCell competence and DNA quality
Competence और clean DNA दोनों transformation success में मदद करते हैं। Poor quality DNA efficiency घटा सकता है। / Competence and clean DNA both help transformation success. Poor quality DNA can reduce efficiency.
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What can happen if DNA purity is low in transformation?
A. Uptake या survival घट सकता हैUptake or survival can decrease
Impurities competent cells को stress दे सकती हैं। Clean DNA better transformation में मदद करता है। / Impurities can stress competent cells. Clean DNA helps better transformation.
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Why can excessive DNA amount be a problem in a competent host?
A. Cells stress हो सकती हैंCells can be stressed
बहुत अधिक DNA या impurities cells पर stress डाल सकते हैं। Optimal DNA amount better होता है। / Too much DNA or impurities can stress cells. An optimal DNA amount is better.
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Which growth phase cells can be better for competence preparation?
A. Active exponential phase
Active growing cells competence treatment के लिए better respond कर सकती हैं। Overgrown culture efficiency घटा सकता है। / Actively growing cells can respond better to competence treatment. Overgrown culture can reduce efficiency.
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