Question

why are cells able to differentiate and become different types of cells? for example nerve cells versus muscle cells? epigenetics determine what genes are turned on or off cells to become different types. histone modification determines what genes are turned on and allows cells to become different types. the age of cells determines what type of cell it is. rna polymerase determines what type of cell each cell will become

Explanation:

Epigenetics involves changes in gene expression without altering the DNA sequence. Histone modification is part of epigenetics and affects gene - accessibility. RNA polymerase is involved in transcription but doesn't directly determine cell - type differentiation. The age of cells is not the main factor in determining cell type. Epigenetics determines which genes are turned on or off in cells, allowing them to differentiate into different cell types.

Answer:

Epigenetics determine what genes are turned on or off in cells to become different types.