Answer:
Amino acid
Explanation:
Because Amino acids consist of an amino group (NH2) , carboxylic group (COOH) and radical (R).
In multicellular plants and animals, however, meiosis is restricted to the germ cells, where it is key to sexual reproduction. Whereas somatic cells undergo mitosis to proliferate, the germ cells undergo meiosis to produce haploid gametes (the sperm and the egg).
D is the answer. A gene is a part of a chromosome.
