Solved

How Does a Stem Cell Become a Heart Muscle Cell

Question 21

Multiple Choice

How does a stem cell become a heart muscle cell, and once it does, can it change to another type of cell?

A) Genes direct differentiation of a single embryonic stem cell into a cardiac muscle cell, and that cell replicates to grow into a heart; no, the process cannot be reversed.
B) Genes direct differentiation of a single embryonic stem cell into a cardiac muscle cell, and that cell replicates to grow into a heart; yes, the process can always be reversed.
C) The stem cells differentiate into an outer population, some of which differentiate into muscle cells, and some of those differentiate into heart muscle cells; yes, the process can always be reversed.
D) The stem cells differentiate into an outer population, some of which differentiate into muscle cells, and some of those differentiate into heart muscle cells; no, the process cannot be reversed.
E) One of the stem cells is destined to be a heart muscle cell, so it gradually differentiates into that and then replicates; no the process cannot be reversed.

Correct Answer: