Question

question 6 of 10
what is an outcome of gene regulation?
a. each cell is able to produce only one protein.
b. every cell produces all types of proteins.
c. each cell produces only the proteins it needs.
d. each cell contains the genes for only one protein.

Explanation:

Gene regulation controls gene expression. Cells don't need all proteins at all times. Through regulation, cells express (produce) proteins relevant to their function. For example, a pancreatic cell produces insulin - related proteins (not muscle - specific proteins), showing cells produce only needed proteins.

• Option A: Cells produce multiple proteins (e.g., enzymes for basic cell functions along with specialized ones).
• Option B: Unnecessary and energy - wasting to produce all proteins.
• Option D: Cells have a full set of genes (except some specialized cases like red blood cells losing nuclei, but initially have full genes). So, gene regulation leads to cells producing only needed proteins (Option C).

Answer:

C. Each cell produces only the proteins it needs.