Host–Vector System — Practice Quiz
CBSE · Class 12 · Biotechnology
Try a 4-question quiz on Host–Vector System for CBSE Class 12 Biotechnology: tap an answer to check it and see why. 64 questions in the full chapter test.
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Which statement best describes a host in recombinant DNA technology?
What is the population-doubling time of E. coli mentioned for cloning work?
Which strain of E. coli is commonly used as a host in gene cloning?
Which organism is the most widely used eukaryotic host in gene cloning?
Sample Questions
What is an episome?
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A plasmid that can integrate into the host chromosome
Episomes are plasmids that can integrate into the host chromosome.
Which plasmid category provides drug resistance by encoding enzymes that deactivate antibiotics?
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R-plasmid
R-plasmids provide drug resistance, such as resistance to ampicillin and tetracycline.
Which plasmid category produces colicins that kill other bacteria?
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Col plasmid
Col plasmids produce toxins called colicins, which kill other bacteria.
Which plasmid category contains transfer genes for pilus formation and plasmid transfer?
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F-plasmid
F-plasmids contain transfer genes that help form a pilus for transfer to other cells.
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
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