Multiple choice

The defective type of hemoglobin in sickle -cell anemia has ______ red-blood corpuscles.

  1. sickle - shaped

  2. dead

  3. round - shaped

  4. normal

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In sickle-cell anemia, the hemoglobin mutation causes red blood cells to take on a rigid, sickle-like shape under low oxygen conditions.