According to both the views, 'something' is passed from parent to offspring which causes development of specific characters.

Correct Option: B

According to both the views, 'something' is passed from parent to offspring which causes development of specific characters.

Mutations are sudden inheritable variations which develop in the genetic system. Natural selection operates through differential reproduction.

Correct Option: A

Mutations are sudden inheritable variations which develop in the genetic system. Natural selection operates through differential reproduction.

Natural selection operates through differential reproduction. Genetic drift is random change in the allele number and frequency in a gene pool.

Correct Option: B

Natural selection operates through differential reproduction. Genetic drift is random change in the allele number and frequency in a gene pool.

Genetic drift can operate only on smaller populations where its fluctuation can be observed in the proportion of allele distribution in the presence of external disturbances. Genetic drift is the random change in allele number and frequency in a gene pool.

Correct Option: A

Genetic drift can operate only on smaller populations where its fluctuation can be observed in the proportion of allele distribution in the presence of external disturbances. Genetic drift is the random change in allele number and frequency in a gene pool.

In 5000 years a given amount of radioactive carbon would decay to half initial concentration.

Correct Option: B

In 5000 years a given amount of radioactive carbon would decay to half initial concentration.