Question

what are the causes of epigenetic processes happening on earth surfaces?​

Answer 1

Answer:

hre is the ansewr for your question

Explanation:

In biology, epigenetics is the study of heritable phenotype changes that do not involve alterations in the DNA sequence.The Greek prefix epi- "over, outside of, around") in epigenetics implies features that are "on top of" or "in addition to" the traditional genetic basis for inheritance. Epigenetics most often involves changes that affect gene activity and expression, but the term can also be used to describe any heritable phenotypic change. Such effects on cellular and physiological phenotypic traits may result from external or environmental factors, or be part of normal development. The standard definition of epigenetics requires these alterations to be heritable in the progeny of either cells or organisms.

The term also refers to the changes themselves: functionally relevant changes to the genome that do not involve a change in the nucleotide sequence. Examples of mechanisms that produce such changes are DNA methylation and histone modification, each of which alters how genes are expressed without altering the underlying DNA sequence. Gene expression can be controlled through the action of repressor proteins that attach to silencer regions of the DNA. These epigenetic changes may last through cell divisions for the duration of the cell's life, and may also last for multiple generations, even though they do not involve changes in the underlying DNA sequence of the organism;instead, non-genetic factors cause the organism's genes to behave (or "express themselves") differently.

Hope you like this ansewr

Tahanks for giving me this opportunity.