Question

Assertion : Loss of vigour called inbreeding depression occurs when inbreeding is continued for many generations.
Reason : Quarantine can be done to overcome the harmful effects of inbreeding depression.
A. If both assertion and reason are true and reason is the correct explanation of assertion.
B. If both assertion and reason are true but reason is not the correct explanation of assertion
C. If assertion is true bur reason is false.
D. if both assertion and reason are false.

Answer 1

Correct Answer - C
Inbreeding is mating of individual closely related by ancestry. It produces loss of vigour when continued for several generations in plants and animals. This loss of vigour, called inbreeding depression, appears because of increased homozygosity and results in expression of harmful effects of recessive alleles. Quarantine is careful examination of all organism being introduced into a new area for the presence of weeds, insects and disease causing organisms. Quarantine cannot overcome inbreeding depression.