Which of the following is an accurate description of imprinting?
a. It is permanent unlearned behavior that appears at birth.
b. It is unlearned behavior that does not appear until exposed to a releaser.
c. It is unlearned behavior that appears at birth but disappears when exposed to an inhibitor.
d. It does not relate to later sexual behavior.
B
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Researchers found that specific combinations of serotonin transporter alleles affected how students reacted to being bullied. Students with the SS alleles had the strongest reaction, those with the LL alleles the mildest reaction, and those with the heterozygous SL alleles reacted somewhere in between. What do these results suggest?
a. The L allele is the dominant allele. b. The S allele is the recessive allele. c. The S allele is the dominant allele. d. The L and S alleles do not have a strict dominant?recessive relationship.
What concept is supported by studies of the HACNS1 DNA segment?
A. that non-protein-coding DNA is just junk left over from evolution B. that only protein-coding DNA is biochemically active C. that non-protein-coding DNA is most of our DNA D. that non-protein-coding DNA indirectly promotes the creation of important proteins
What is the Language Acquisition Device (LAD)?
a. a neural prewiring that allows children to learn grammar b. a technique used to teach infants language skills c. a sensitive period in which children acquire language d. none of these
Drug therapy to treat the symptoms of Alzheimer's disease focuses on the loss of the neurotransmitter __________
a) serotonin b) dopamine c) acetylcholine d) ribonucleic acid