Question

Epigenetics refers to a special kind of hereditary mechanism. Epigenetic changes do not change the DNA nucleotide sequence, yet their effect on gene expression can last for several generations. In one surprising study, it was found that the grandsons of men who suffered a famine were less likely to die of cardiovascular disease. The experience of famine made some cardio-protective change in the sperm of those grandfathers that was passed on. What type of change was likely responsible?

A. histone acetylation or DNA methylation
B. Phosphatase levels
C. ubiquitin tagging

Answer 1

Answer:

The type of change that was responsible was “histone acetylation or DNA methylation”.

Explanation:

• Histone acetylation is the process that involves the epigenetic adjustments that functions in the transcription process while regulating DNA.

• Histone acetylation or DNA methylation is the major component of the gene regulation while passing from one generation to another.

• The Acetyl groups are hooked up to lysine’s in histone tails so their charges play a vital role to avoid the histone tail to bind with the other molecules.