All of the phenotypes listed below are determined at least partially by genotype. Which trait is most likely to be influenced by the environment as well?
A. eye color
B. height
C. weight
D. facial features
E. None of the answer options is correct; all
of the traits are exclusively determined by
genotype.
C
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Animals such as humans would be classified as:
A. photoautotrophs. B. photoheterotrophs. C. chemoautotrophs. D. chemoheterotrophs.
Choose the true statement about foreign DNA in the human genome.
A. Most of the foreign DNA in the human genome is ancient. B. Most of the foreign DNA in the human genome is coding DNA. C. Like the Drosophila genome, the human genome is constantly eliminating its foreign DNA. D. New foreign DNA is regularly entering the human genome.
In frogs, the gray crescent appears
a. after the egg matures. b. after fertilization. c. during blastula formation. d. following gastrulation. e. as a result of tissue specialization.
__________ are dormant structures formed by bacteria in response to adverse environmental
conditions. a. Capsids b. Endospores c. Exotoxins d. Endotoxins e. Heterocysts