Industrial melanism is a term
A. describing the color change induced by living in industrialized areas.
B. describing the widespread implementation of pollution controls.
C. describing the evolutionary process in which initially light-colored organisms become dark as a result of natural selection.
D. explaining that the darker moths have higher mutation rates because of industrialization.
E. explaining that the darker moths having higher reproductive success because of their pigmentation.
Answer: C
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What are mycorrhizae?
a. connecting points between branching roots b. symbiotic associations between a fungus and plant roots c. specialized root hairs d. localized swellings in plant roots filled with nitrogen-fixing bacteria
You breed a black, long-haired rabbit with a white, short-haired rabbit. All of the offspring have long, black hair. If the genes for hair color and length are linked, what would be a possible ratio for the F2 population?
A. 5 long-haired black, 4 short-haired white, 1 short-haired black, 2 long-haired white B. 3 long-haired black, 1 short-haired white, 1 short-haired black, 3 long-haired white C. 5 long-haired black, 4 short-haired white, 5 short-haired black, 4 long-haired white D. 1 long-haired black, 1 short-haired white, 1 short-haired black, 1 long-haired white E. 1 long-haired black, 2 short-haired white, 5 short-haired black, 4 long-haired white
When introduced into mitotic cells, which of the following is expected to impair anaphase B but not anaphase A?
(a) an antibody against myosin (b) ATP?S, a nonhydrolyzable ATP analog that binds to and inhibits ATPases (c) an antibody against the motor proteins that move from the plus end of microtubules to the minus end (d) an antibody against the motor proteins that move from the minus end of microtubules toward the plus end
A virus with a capsid with twenty triangular faces is called:
a. icosahedral. b. helical. c. binal. d. filamentous. e. dodecahedral.