Which of the following is a blood disorder characterized by crescent-shaped, red blood cells and is caused by a recessive allele that produces an alternate form of hemoglobin?
A.Huntington disease
B.Sickle cell anemia
C.Tay-Sachs
D.Malaria
A.Huntington disease
B.Sickle cell anemia
C.Tay-Sachs
D.Malaria