Question

Rate of mutation is affected by

• A. temperature
• B. $X$-rays
• C. gamma rays
• D. all of these

Answer 1

Answer: (D)

all of these

Answer 2

Any extracellular physical or chemical factor which can cause mutations or increase the frequency of mutations in organisms is called mutagen. They include, temperature and high energy radiations such as $X$-rays, ultra-violet rays and gamma rays.