Carriers of the sickle cell gene
A) often do not display symptoms until after they have passed the gene on to their children.
B) can be treated during infancy if placed on a diet that is low in phenylalanine.
C) are more resistant to malaria than are individuals with two alleles for normal red blood cells.
D) develop sickle-shaped red blood cells that cause degeneration of the nervous systems.
C
You might also like to view...
Which of the following statements regarding TOT experiences is FALSE?
a) They often involve the names of famous people or familiar objects. b) They typically involve recognition tasks. c) About half the time, the words do eventually pop into mind. d) When words are finally remembered, it is usually wi
Pepper has a firm sense of her childhood, who she is as a person today, and how she will live her life in the future. This constitutes Pepper's:
A. possible selves. B. fluid intelligence. C. life-span construct. D. scenario.
An emotional __________ refers to one's outward or external appearance
Fill in the blanks with correct word
In developed countries, what percent of older adults have at least one grandchild who is 18 years old or older?
a. 90% b. 70% c. 50% d. 30%