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

Pls the table below shows the role of different substances during photosynthesis. substance role during photosynthesis glucose stores chemical energy water combines with glucose to form carbon dioxide chlorophyll traps sunlight which of the following statements would correct one of the roles listed in the table? glucose combines with carbon to form water. chlorophyll reacts with light to produce carbon dioxide. water combines with carbon dioxide during photosynthesis. chlorophyll stores chemical energy needed for photosynthesis.