Vectors Uses for Animal Cell Culture – Section 1

21. Cos cell line is

A. cohesive end site of phage λ
B. derivative of permissive CV-1 monkey cell line
C. cohesive initial site of phage λ
D. derivative of non-permissive CV-1 monkey cell line

Correct Answer: B. derivative of permissive CV-1 monkey cell line

22. Lytic infection of SV 40 does not occur in

A. permissive cells
B. nonpermissive cells
C. both (a) and (b)
D. none of these

Correct Answer: B. nonpermissive cells

23. Moloney-Mu-leukemia virus is an example of

A. Vaccinia virus
B. Baculo virus
C. Retrovirus
D. none of these

Correct Answer: C. Retrovirus

24. Which one of the following is true about Yeast Integrative plasmids (YIp) vectors?

A. Allows transformation by using crossing over
B. Has an origin of replication and rep genes
C. Carries autonomously replicating sequence
D. Carries centromere and telomere sequences

Correct Answer: A. Allows transformation by using crossing over

25. The size of the genome of SV 40 is

A. 7.2 kb
B. 69 kb
C. 5.2 kb
D. 110 kb

Correct Answer: C. 5.2 kb

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