Assertion : Mutations cause evolution.
Reason : Ancon sheep and hornless cattle are developed by inducing mutation.

Options

A. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C. If the assertion is true but the reason is false
D. If both the assertion and reason are false

Answer

B

Explanation

Mutation is the sudden, random change in the genetic material of DNA that causes genetic variation which accumulates generation after generation and form new species. Thus mutation is a raw material for evolution.
Ancon sheep is a short legged cattle which appeared suddenly in Massachusetts in 1971. Hornless cattle developed as mutation from horned cattle in 1889.