31.
Match List-I (cloning vector) with List-II (character) and select the correct answer:
List-I: Cloning vector List-II: Character
a. Yeast episomal plasmid (YEp) 1. Integrates with host chromosome for replication
b. Yeast integrative plasmid (YIp) 2. Carries a chromosomal origin of replication
c. Yeast replicative plasmid (YRp) 3. Carries origin of replication of the 2 mm plasmid

32.
Which of the following methods would give you the most precise and accurate information about where and when a given gene is expressed?

33.
Which of the following are not valid methods of labelling duplex DNA?

38.
Two restriction enzymes A and B have eight and four base pairs as their recognition sites respectively. The ratio of the number of fragments that they will generate on restriction digestion of a genomic DNA of E.coli is approximately

39.
Which of the following is a desirable characteristic for a cloning plasmid?

40.
Which of the following could not possibly give rise to a restriction fragment length polymorphism (RFLP)?