Question

Assertion: Hj Muller (1927) first of all demonstrated the use of physical mutagens and got Nobel Prize in 1946.
Reason: X-rays, gamma rays are commonly used for producing mutation artificially .
A. Both Assertion and reason are true and the reason is a correct explanation of the Assertion
B. both Assertion and Reason are true and the Reason is not the correct explanation of the Assertion
C. Assertion is true, but the Reason is false
D. Assertion is false, but the reason is true

Answer 1

Correct Answer - B
x. Hj Muller (1927) was the first scientist who demonstrated the use of physical mutagens and got Nobel Prize in 1946. A variety of agents increase the frequency of mutation, such agent are called mutagens. They include chemical mutagens and radiations like X- rays, y-rays and UV-rays.