Refer to Figure 14-1. The structure labeled 7 in the figure of the tryptophan operon is:
a. an active repressor protein.
b. an inactive repressor protein.
c. an active RNA polymerase.
d. an inactive RNA polymerase.
e. a ribosome.
B
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Huntington’s disease (HD) is a neurodegenerative genetic disorder involving an autosomal dominant mutant allele with high penetrance. If a father’s mother had HD, what is the probability that his first child will also have HD?
a. It depends on whether the father has the allele. b. It depends on whether the trait is recessive. c. 0.5 or 50% d. 0.25 or 25%
The most complete listing of the organisms the H5N1 strain of influenza virus can infect is ____
a. humans b. pigs c. birds d. humans and pigs e. humans, pigs and birds
Which step of the cellular respiration pathway produces 4 CO2, 6 NADH, 6 H+, 2 FADH2, and 2 ATP?
A. Glycolysis B. Fermentation C. Citric Acid Cycle D. Electron Transport Chain
Which assumption pertains to a population in a Hardy-Weinberg equilibrium?
A) a selectively mating population B) a small population C) no migration, mutation or, genetic drift D) a selective advantage of one genotype