Question

many scientists believe that stem cells might be useful for treating certain human diseases in the future. stem cells are cells that
a. are modified viruses that can be used to transfer genetic information.
b. have the potential to differentiate into various specialized cell types.
c. lack the ability to undergo cell division through mitosis.
d. are very small and can only be found in plants.

Explanation:

Stem cells are undifferentiated cells. They have the potential to differentiate into various specialized cell types. Modified viruses are vectors for genetic transfer (not stem cells). Stem cells can divide by mitosis. Stem cells are found in animals (including humans) as well as plants.

Answer:

B. have the potential to differentiate into various specialized cell types.