Question : [A]: Basis of adaptation is the preexisting gene mutation.[R]: In changed environment, a hidden gene mutation may express and result in survival of the organisms and finally lead to adapta- tion to new conditions.

Question : [A]: Basis of adaptation is the preexisting gene mutation.[

1.	Question : [A]: Basis of adaptation is the preexisting gene mutation.[R]: In changed environment, a hidden gene mutation may express and result in survival of the organisms and finally lead to adapta- tion to new conditions.
Answer» If both A and R are true and R is the correct EXPLANATION of A If both A and R are true but R is not the correct explanation of A If A is true and R is FALSE If both A and R are false Answer :A