Phenylketonuria (PKU) is a genetic disorder in which __________
A) the body produces too much of the amino acid phenylalanine
B) the body cannot break down the amino acid phenylalanine
C) a lack of phenylalanine, if not supplemented, causes intellectual disability
D) a missing enzyme can be supplied by a protein-rich diet
Answer: B
You might also like to view...
Which principle of consciousness addresses changes in consciousness due to illness, disease, or traumatic injuries that affect the brain?
A. Consciousness is produced by brain activity. B. Consciousness is dynamic. C. Consciousness involves both arousal and awareness. D. Consciousness can be altered.
According to the behaviorists, the link between permissiveness for sexual and aggressive behavior and adult needs for power probably occurs because permitting such behaviors
a. prevents the Oedipal and Electra complexes from being resolved. b. causes a fixation to occur at the phallic stage. c. causes incongruence between the individual's real self and external reality. d. allows children to get pleasure from asserting themselves.
An interaction in which two independent variables tend to reverse each other's effects is referred to as a(n)
a. synergistic interaction b. antagonistic interaction c. ceiling effect interaction d. both a and c
A maladaptive technique in which people physically injure themselves in order to experience short-term relief from a host of negative self-feelings is called:
a. psychotic maiming b. self-cutting c. emotional fun d. adjusted slicing