Question

Why doesn't skin make the crystallin protein?

a) Skin cells use different DNA for their genes.
b) The crystalline gene is not present in skin cells.
c) SKin cells do not need crystalline for their function.
d) Skin cells have the crystalline gene but do not express it.

Answer 1

Skin cells do not make the crystallin protein because they do not need it for their function.

Step-by-step explanation:

Each cell in the body contains the same DNA sequences, but not all genes are expressed in every cell. Different cells have different functions and therefore require different proteins. Skin cells do not make the crystallin protein because they do not need it for their function.