A) Plasmid
B) Bacterial artificial chromosome
C) Cosmid
D) Yeast artificial chromosome
Correct Answer: A
Solution :
: The vectors are DNA molecules that can carry foreign DNA segment and replicate inside the host cell. Plasmids are extra-chromosomal, self-replicating, circular, ds DNA molecules. Plasmid vectors are used to carry small DNA fragments usually of\[100-1000\text{ }bp\]. Cosmids are used to clone DNA fragments upto 45Kb in length, bacterial artificial chromosomes (BAC) can accommodate 300-350 Kb of foreign DNA and yeast artificial chromosomes (YAC) can clone DNA fragments of more than 1 Mb in size.
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