Which of the following is extremely radiation resistant?
A. Deinococcus
B. Cytophaga
C. Thermotoga
D. Aquifex
Answer: A
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If the nitrogenous bases of both a DNA transposon and a retroelement were tagged with fluorescent markers, what statement best describes the result after transposition of both types of TEs has occurred?
A. The markers would be found at the new site of the DNA transposon, but not at the new site of the retroelement. B. The markers would be found at the new site of the retroelement, but not at the new site of the DNA transposon. C. The markers would be found at the new sites of the DNA transposon and the retroelement. D. The markers would be not be found at either new site.
An X-linked carrier is a
a. homozygous dominant female. b. heterozygous female. c. homozygous recessive female. d. homozygous male. e. heterozygous male
The role that humans play in artificial selection is to
A. train organisms to breed more successfully. B. create the genetic variants, which nature then selects. C. determine who lives and who dies. D. choose which organisms E. breed, and which do not. perform artificial insemination.
Inhabitants of oceanic islands resemble forms of the nearest mainland but show some differences. This is an example of
A. biogeography. B. convergent evolution. C. development. D. the fossil record. E. homology.