Question

(i) how does the re-establishment of DNA amount occur in the new generation?

(ii) how is the amount of variations increase among the individuals of each of

the population?​

Answer 1

Answer:

i. When the gametes fuse during fertilization, the resulting new generation organism gets one pair of chromosome (Haploid) from each parent and thus the chromosome becomes diploid. Thus, the full number of chromosomes is re-established and the specific chromosome number of a species is maintained.

Gene duplication, mutation, or other processes can produce new genes and alleles and increase genetic variation. New genetic variation can be created within generations in a population, so a population with rapid reproduction rates will probably have high genetic variation.