Question

sickle cells blocking blood flow a. \the cell divides\; because mutations can cause cells to divide without stopping b. \cell repairs the dna\; because cells have special mechanisms in place to detect and repair mutations c. \cell destroys itself\; because cells that have mutations must be destroyed for the body to stay healthy d. \change in a protein\; because the mutation causes a change in an important protein in red blood cell

Explanation:

Sickle cell disease arises from a genetic mutation that alters the structure of hemoglobin, a critical protein in red blood cells. This protein change causes red blood cells to take on a sickle shape, which can block blood vessels as shown. The other options are incorrect: unregulated cell division is linked to cancer, DNA repair does not occur for this inherited mutation, and the cells do not self-destroy in this condition.

Answer:

D. "change in a protein"; because the mutation causes a change in an important protein in red blood cell