Final answer:
True. Epigenetic marks act to program the cell to express genes that are relevant for a particular tissue type. Hence, a) is correct.
Step-by-step explanation:
True
Although each cell in the human body contains the same DNA, epigenetic marks act to program the cell to express genes that are relevant for a particular tissue type.
Epigenetic marks are chemical modifications to the DNA and the proteins associated with it, which can activate or silence gene expression.
These marks are responsible for the specialization of different cells in the body, allowing them to perform their specific functions.