Question

A change that affects the body cell is not inherited. However, a change in the gamete
is inherited. The effects of radiation at Hiroshima have been affecting generations.
Analyze the above statements and give your interpretation.

TNSCERT Class 10 Biology Ch 1 Heredity and Evolution

Answer 1

Due to mutation in DNA the arrangement of one or more base pairs change,leading to variation.
Mutation is nothing but a sudden heritable change.
One best example is "Sickle cell anaemia" where the shape of RBC changes from biconcave and thereby the oxygen carrying capacity decreases