Name describe and explain what the consequences are about on

Name, describe and explain what the consequences are about one type of epigenetic mechanism affecting gene expression.

Solution

Epigenetics refers to the stably heritable phenotype resulting from changes in a chromosome without alteration in the DNA sequence.

Examples of mechanism that produces such changes are DNA methylation and histone modification.

DNA methylation occurs at 5\' position of cytosine ring with in CpG dinucleotide via addition of a methyl group to create 5-methyl cytosine.

This DNA methylation is linked to transcription al silencing and is important for gene regulation,development and tumorigenesis.