Biotechnology- Principles and Processes Question 24

24. Which vector can clone only a small fragment of DNA?

[2014]

(a) Bacterial artificial chromosome

(b) Yeast artificial chromosome

(c) Plasmid

(d) Cosmid

Show Answer

Answer : c

Hints & Solutions

(c) Plasmids are small extranuclear circular DNAs which carry extrachromosomal genes in bacteria and some fungi. They replicate independently. The best known vectors which are also available commercially are pBR322 and pUC-18.