Q. In callus culture, roots can be induced by the supply of
A) Auxin
B) Cytokinin
C) Gibberellin
D) Ethylene
Explanation
In callus culture, shoot and root regenerations are controlled, generally, by auxin-cytokinin balance. Usually, the excess of auxin (such as naphthalene acetic acid or NAA), promotes root regeneration, whereas that of cytokinin (like BAP) promotes shoot regeneration.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.