Question

how did the hereditary changes responsible for evolution for 10 std

Answer 1

Mutations in these genes can produce new or altered traits, resulting in heritable differences (genetic variation) between organisms. ... In contrast, genetic drift produces random changes in the frequency of traits in a population.

Answer 2

heredity causes mutations and slowly change in genetic material as the time passes and generations. characters are transferred from parent to his offspring with some modifications necessary to survive in nature. This takes long and long time so we called it evolution.