E-PolyLearning

1. Plasmid incompatibility is
a. inability of a plasmid to grow in the host
b. inability of two different plasmids to coexist in the same host cell in the absence of selection pressure.
c. both (a) and (b)
d. none of the above
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Answer: (b).inability of two different plasmids to coexist in the same host cell in the absence of selection pressure.

2. P1 cloning vector allow cloning of DNA of the length of
a. 100 kbp
b. 50 kbp
c. 20 kbp
d. 10 kbp
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Answer: (a).100 kbp

3. Charon 34 and Charon 35 can clone DNA upto
a. 1-2 kb
b. 6-7 kb
c. 9-20 kb
d. 30-35 kb
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Answer: (c).9-20 kb

4. Charon vectors are different from EMBL vectors because
a. they have more extensive range of restriction targets with in their polylinkers.
b. physical separation of lambda arm from central fragment is required
c. both (a) and (b)
d. physical separation of lambda arm from central fragment is not required
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Answer: (c).both (a) and (b)

5. P1 cloning vector is the example of
a. plasmid
b. cosmid
c. bacteriophage
d. phagemid
View Answer Report Discuss 50-50!
Answer: (c).bacteriophage

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