The Living World Question 207
Question: Assetion : Mutations cause evolution. Reason : Ancon sheep and hormless 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
Show Answer
Answer:
Correct Answer: B
Solution:
Mutation theory of Hugo do Vries states that evolution is jerky process where new varieties and species are formed by mutations that functions as raw material of evolution.
A number of mutations have appeared in the past.
Mutations are also induced.
Ancon sheep is a short legged variety which appeared suddenly in Massachusetts in 1971.
Hornless cattle developed as mutation from the horned cattle in 1889.
BETA
