What is the role of the chemical compounds "acetyl" and "methyl" in epigenetics?
a. They increase or decrease the probability of a gene mutation.
b. They increase or decrease the expression of certain genes.
c. They induce the duplication of certain chromosomes
d. They imitate the effects of sex-linked genes.
b
Psychology
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Illnesses that are aggravated by or primarily attributable to prolonged emotional stress or other psychological causes are called __________ disorders
FIll in the blank with correct word.
Psychology
Calm is to aroused as _______ is to _______
a. parasympathetic; sympathetic b. autonomic; motor c. sympathetic; parasympathetic d. central; peripheral
Psychology