Answer:
D, C and A are the correct options.
B is less likely rather is a personal reference.
<span>The study of the interactions of genes with the environment is called Epigenetic, is how genes are expressed in relation to environmental factors and how diseases and other conditions develop. It is the study of the impact of environment and lifestyle on the behavior of genes and the way it responds to external factors.</span>
Nose, mouth, pancreas, kidney, tell me if i missed some
MUTATIONS lead to duplications actually increase the number of genes in a genome.