Q. Restriction endonucleases are:

A) Present in mammalian cell for degradation of DNA when the cell dies
B) Synthesized by bacteria as part of their defence mechanism
C) Used for in vitro DNA synthesis
D) Both (B) and (C)
Explanation

The correct answer is Option D: Both (B) and (C).

A detailed explanation for this question is being prepared.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.