When carbon dioxide is absorbed into water, the solution becomes more
(a) acidic.
(b) basic.
(c) warm.
(d) red.
(a) acidic.
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What is the difference between a linkage map and a physical map?
A) Markers are spaced by recombination frequency on a linkage map and by number of base pairs on a physical map. B) The ATCG order and sequence must be determined for a linkage map but not for a physical map. C) A linkage map shows how each gene is linked to every other gene, but a physical map does not. D) Distances must be calculable in units such as nanometers on a physical map but not on a linkage map. E) There is no difference between the two except in the type of pictorial representation.
The Cystoisospora belli organism, which contains two sporocysts with four sporozoites each, is recovered from fecal specimens and has also been implicated in traveler's diarrhea. The drug of choice to treat infection caused by C. belli is:
a. trimethoprim-sulfamethoxazole combina-tion. b. tetracycline. c. albendazole. d. flagyl.
Multiple independent experiments have demonstrated that phytochrome helps trigger seasonal change responses in the plant such as changing color and loosening of leaves. Plants have the ability adapt to seasonal changes in their surroundings. This statement is an example of:
A. a hypothesis B. deductive reasoning C. a theory D. an experiment E. inductive reasoning
Which of the following populations will have the smallest number of genetically different individuals in it?
A. a population of asexually reproducing lizards initiated by one female B. a small island population of water snakes C. a large cornfield of hybrid corn in Iowa D. the robin population of Michigan