In Recent Times, It Has Been Shown That Adult Cells

Multiple Choice

In recent times, it has been shown that adult cells can be induced to become pluripotent stem cells (iPS) . To make this conversion, what has been done to the adult cells?

A) A retrovirus is used to introduce four specific master regulatory genes.
B) The adult stem cells must be fused with embryonic cells.
C) Cytoplasm from embryonic cells is injected into the adult cells.
D) The nucleus of an embryonic cell is used to replace the nucleus of an adult cell.