Q. Which of the following key factors, makes plasmid, the vector in genetic engineering?
A) It is resistant to antibiotics
B) It is resistant to restriction enzymes
C) Its ability to carry a foreign gene
D) Its ability to cause infection in the host
Explanation
Plasmids, cosmids or bacteriophages can be used as vector in genetic engineering. Plasmids are most widely used circular, extrachromosomal DNA segments seen in the bacterial cells. They carry a foreign gene or desired gene to the host. The size of plasmids ranges from $1 \times 10^{6}$ to $200 \times 10^{6}$ daltons
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.