Assertion :- Mutations are main source of evolution.
Reason : Mutation causes variations.

Mutation is the main source of evolution.

Assertion :- Mutation play key role in the process of evolution. Reaosn : Mutation can change the genotypic consituent.

Assertion :- Mutation play key role in the process of evolution. Reaosn : Mutation can change the genotypic consituent.

Mutations are caused due to

Assertion: Mutations are basically different from fluctuations. Reason: Mutations are sudden discontinuous and large variations, while fluctuations are small and continuous variations.

Assertion : A single mutation may produce a new species . Reason : Mutation may cause major variation in genetic material and these are inheritable .

Assertion : A single mutation may produce a new species . Reason : Mutation may cause major variation in genetic material and these are inheritable .