Q. Which of the following is generally used for induced mutagenesis in crop plants ?
A) Alpha particles
B) X-rays
C) UV (260 nm)
D) Gamma rays (from cobalt 60)
Explanation
[Solution from source] Gamma rays from a cobalt-60 source penetrate seeds and tissues well and are the most common mutagen in plant mutation breeding. Alpha particles penetrate too little, and UV acts only on surface cells or pollen. Answer (4).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.