Q. An extrachromosomal DNA, which can be used as vector in gene cloning is called
A) Transposon
B) Intron
C) Exon
D) Plasmid
Explanation
Plasmids are extrachromosomal molecules of DNA that replicate independently of the bacterial chromosomes. They are normally closed, circular, super coiled. They are used as a vector for cloning and genetic engineering.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.