BOTANY

Detailed explanation-1: -Epigenetic mechanisms in pregnancy are a dynamic phenomenon that responds both to maternal–fetal and environmental factors, which can influence and modify the embryo-fetal development during the various gestational phases.

Detailed explanation-2: -Nutritional epigenetics seeks to explain the effects of nutrition on gene expression. For social science, it is an area of life science whose analysis reveals a concentrated form of a wider shift in the understanding of food and metabolism.

Detailed explanation-3: -Epigenetic marks do not alter DNA sequence but instead allow or silence gene activity and the subsequent production of proteins that guide the growth and development of an organism, direct and maintain cell identity, and allow for the production of primordial germ cells (PGCs; ova and spermatozoa).