Polygenic characteristics are better studied using genomics instead of individual studies. What is a polygenic characteristic?
a. characteristics involving two or more species’ DNA
b. characteristics that are only controlled or expressed based on environmental factors
c. characteristics that involve two or more genes and may involve environmental factors as well
d. characteristics that follow purely Mendelian inheritance patterns
c. characteristics that involve two or more genes and may involve environmental factors as well
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Discuss how a genetic variant may explain why HIV infection rates are highest in sub-Saharan Africa
What will be an ideal response?
When a diabetic injects insulin, what does this accomplish?
A. promotes glucose release from cells, raising blood glucose B. promotes uptake of glucose into cells, lowering blood glucose C. promotes hydrolysis of glycogen, raising blood glucose D. improves the ability of the body to sense blood glucose levels
A mutation in the DNA-binding domain of a steroid hormone receptor is most likely to affect what aspect of receptor function?
A. The binding of the hormone to the receptor B. The cellular response to the hormone C. The translocation of the receptor to the nucleus D. The conformational change of the receptor
What diffuses across the narrow synaptic cleft between the presynaptic axon and the postsynaptic cell to transmit a nerve impulse?
A. Electrical impulse B. Neurotransmitter C. Na+ ion D. Action potential E. Vesicle