Question

what is the effect of the dna mutation?
the blood has more oxygen
the blood cells shape changes
rewatch

Explanation:

A common DNA mutation (e.g., in the HBB gene for sickle cell anemia) alters hemoglobin structure, which changes red blood cells from a round, flexible shape to a rigid, sickle-like form. This mutation does not increase blood oxygen; instead, it reduces oxygen-carrying capacity.

Answer:

The blood cell's shape changes