The Living World 6th Edition by George Johnson, Jonathan Losos,William Ober,Claire Garrison

تمرين 1

One of the main biological problems with replacing damaged tissue through the use of embryonic stem cells is
A) immunological rejection of the tissue by the patient.
B) that stem cells may not target appropriate tissue.
C) the time needed to grow sufficient amounts of tissue from stem cells.
D) that genetic mutation of chosen stem cells may cause future problems.