Which of the following is characteristic of sickle-cell anemia?
a. The disorder can be serious but not fatal
b. The disorder leads to depression of energy expenditure
c. The abnormal structure of the hemoglobin alters the shape of the red blood cell
d. The hemoglobin amino acid sequence is abnormal in all four of the polypeptide chains
Question 2
Which of the following is NOT among the characteristics of dolomite supplements?
a. Efficiency of absorption is poor
b. They contain both calcium and magnesium
c. They are usually sold as a very pure product
d. They are commonly extracted from limestone
