Q. Which of the following statement is incorrect about plasmids?
A) They are extrachromosomal DNA
B) They are used in genetic engineering
C) They help in the replication of nucleoid
D) They are small, circular and confer certain unique phenotypic characters to some bacteria like resistance to antibiotics
Explanation
In prokaryotes, additional small circular DNA entities called plasmids are present. Plasmids carry additional specific factors like nitrogen fixation, resistance, fertility, etc. DNA present as genetic material is naked and often called genophore, nuclear body or nucleoid
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.