Question

why is cloning embryonic stem cells a \holy grail\ for scientists?
a it will allow scientists to clone people.
b it can help scientists understand diseases.
c it will allow scientists to make personalized medicine.
d it will allow scientists to raise the specter of controversy.

Explanation:

Embryonic stem - cells are pluripotent, meaning they can differentiate into various cell types. Cloning them can lead to a better understanding of diseases as well as the development of personalized medicine. While cloning people is unethical and controversial, the main scientific interest is in medical and research - related benefits, not in creating controversy for its own sake.

Answer:

B. It can help scientists understand diseases.
C. It will allow scientists to make personalized medicine.