Question

The ventral striatal medium spiny neurons implicated in drug addiction and the cardiomyocytes

responsible for the beating of your heart both contain the same DNA yet look very differently and

perform very distinct physiological processes. Use the concept of epigenetics to explain how

this occurs.

Answer 1

ANSWER - Epigenetics is mechanism for regulating gene activity independent of DNA sequence that determines which genes are turned on and off in a particular cell type, in different disease states, in response to a physical stimulus.

modifications in epigenetics include adding molecules like methyl to the DNA, histone acetylation, X chromosome inactivation, position effect variegation the solar types of epigenetic changes, this change the parent structure of DNA and little also alter how the jeans will interact with the transcribing molecule in nucleus.

identical twins originate from the same DNA so how can they turn out so different , one twin gets heart disease at the age of 40 and the other runs marathon at that same age. This can be explain with the help of epigenetics.