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 41-50 of 295 questions.
A bacteriophage vector is related to what?
A. Virus that infects bacteria
Bacteriophage bacteria को infect करने वाला virus होता है। Modified phage vectors DNA cloning में उपयोगी हो सकते हैं। / A bacteriophage is a virus that infects bacteria. Modified phage vectors can be useful in DNA cloning.
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Why is a host cell needed after inserting DNA into a cloning vector?
A. वेक्टर और insert की प्रतियाँ बनाने के लिएTo make copies of vector and insert
Host cell recombinant vector को replicate कर सकती है। इससे desired DNA की कई प्रतियाँ बनती हैं। / A host cell can replicate the recombinant vector. This produces many copies of the desired DNA.
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Which option is a correct group of features of a cloning vector?
A. ओरी selectable marker और cloning siteOri selectable marker and cloning site
एक अच्छे cloning vector में ori marker और cloning site जैसे भाग होने चाहिए। ये replication selection और insertion में मदद करते हैं। / A good cloning vector should have parts like ori marker and cloning site. They help in replication selection and insertion.
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Which enzyme performs joining when a foreign gene is added to a cloning vector?
A. डीएनए लाइगेजDNA ligase
DNA ligase foreign gene और vector ends को जोड़ता है। Restriction enzymes पहले compatible ends बना सकते हैं। / DNA ligase joins the foreign gene and vector ends. Restriction enzymes can create compatible ends first.
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What would be difficult in gene cloning without a cloning vector?
A. Desired DNA को host में ले जाकर copy बनानाCarrying desired DNA into host and making copies
Vector desired DNA को host में पहुँचाकर replication में मदद करता है। इसलिए gene cloning में vector जरूरी है। / A vector carries desired DNA into a host and helps replication. Therefore a vector is necessary in gene cloning.
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What helps identify transformation success in a cloning vector?
A. Selectable marker
Selectable marker बताता है कि कौन सी कोशिकाएँ vector लेकर बढ़ रही हैं। यह transformed cells पहचानने में मदद करता है। / A selectable marker shows which cells are growing with the vector. It helps identify transformed cells.
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Which statement is correct about plasmid cloning vectors?
A. वे छोटे circular DNA carriers हो सकते हैंThey can be small circular DNA carriers
Plasmid vectors circular DNA carriers की तरह काम करते हैं। वे host में replicate हो सकते हैं। / Plasmid vectors work like circular DNA carriers. They can replicate in a host.
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What is the safest definition of a cloning vector?
A. वह डीएनए वाहक जो foreign DNA को host में ले जाकर replicate कराता हैA DNA carrier that takes foreign DNA into host and helps it replicate
Cloning vector foreign DNA को host में carry करता है और copy number बढ़ाने में मदद करता है। यही topic का मूल सार है। / A cloning vector carries foreign DNA into a host and helps increase copy number. This is the core summary of the topic.
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Which part of a cloning vector can affect DNA copy number?
A. ओरीOri
Ori replication control से जुड़ा होता है। इसलिए यह vector copy number को प्रभावित कर सकता है। / Ori is related to replication control. Therefore it can affect vector copy number.
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What is the most important exam link in the topic Cloning Vectors?
A. ओरी marker और cloning siteOri marker and cloning site
Cloning vector के basic parts ori marker और cloning site हैं। इन्हें functions के साथ याद करें। / The basic parts of a cloning vector are ori marker and cloning site. Remember them with their functions.
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