The accompanying figure represents which chromosomal change?
a. inversion
b. deletion
c. duplication
d. translocation
e. aneuploidy
ANSWER: a
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Which of the following is not true concerning a population in equilibrium according to the Hardy-Weinberg rule?
A. There is no migration into or out of the population B. Individuals of the population mate randomly C. The population size is very large D. Selection is favoring the dominant allele E. There is no mutation in the populations
What are proglottids?
a. the anterior end of a tapeworm, which attaches to the host with suckers or hooks b. enzyme molecules excreted by parasitic worms to digest the host’s tissues c. a tapeworm segment containing an excretory system and reproductive structures d. a pair of organs attached to the anterior of a worm that it uses to collect food
A small decrease in pH was shown to have a significant effect on
a. climate change. b. the oceanic sink for carbon dioxide. c. genes involved in building mineralized skeletons in sea urchin larvae. d. genes involved in zooplankton reproduction. e. the ocean source for carbon dioxide.
During fermentation in yeast, acetaldehyde accepts a hydrogen atom from NADH and is converted to ________.
Fill in the blank(s) with the appropriate word(s).