Author Question: Which of the following is not true of sickle-cell anemia? a. A carrier of one sickle-cell gene ... (Read 336 times)

strangeaffliction · **on:** Jun 22, 2018

Which of the following is not true of sickle-cell anemia?

a. A carrier of one sickle-cell gene can benefit from it where malaria is common.
b. Sickle-cell anemia is most common among people of central African or Indian descent.
c. People who have two recessive genes for sickle-cell always have the disease.
d. Sickle-cell anemia is commonly passed from one generation to the next.

Question 2

Geneticists in recent years have begun to identify genes that

a. cause behavior. c. predetermine behavior.
b. are associated with behavior. d. can be used to change behavior.