Non-coding DNA regions within a gene are referred to as
A. introns.
B. exons.
C. templates.
D. transposons.
E. pseudogenes.
A. introns.
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If a sexually reproducing parent has a
particular mutation, the chances that its offspring will inherit that mutation is
a. 0%. b. 25%. c. 50%. d. 100%. e. variable, depending on the mutation
The structure that transports sperm cells from the epididymis to the urethra is the
A. vas deferens. B. ductus arteriosus. C. semen. D. prostate tubules.
Your friend does a belly flop into a swimming pool. The stinging pain he feels is most likely due to the
A) pH of the water. B) surface tension of water (caused by the large number of hydrogen bonds that form between water molecules). C) hydrophobic nature of your friend's skin. D) fact that water is a good solvent.
HIV/AIDS and tuberculosis are both examples of current
A. outbreaks. B. epidemics. C. acute infections. D. opportunistic infections. E. pandemics.