When studying inherited traits, it was noticed that the environment can change the expression of a gene. So, for instance, "tall" pea plants planted in poor soil will not grow to their full potential. This effect is part of the study of: epigenetics.
Genes are the basic unit of heredity. It contains the information for a particular trait that can be passed on from one generation to another. A gene can have several alternative forms, known as allele.
Epigenetics refers to the changes m]in the genes that cannot be inherited. These changes are generally made due to environmental influence. These changes are reversible. DNA methylation or acetylation are examples of epigenetics.
To know more about epigenetics, here
brainly.com/question/2670031
#SPJ4