Which of the following would NOT be included in the reaction chamber of an experiment intended to
duplicate the atmosphere of ancient earth?
a. carbon dioxide
b. hydrogen gas
c. carbon monoxide
d. water vapor
e. nitrogen gas
D
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Insertions and deletions of three base pairs:
A. change one codon and, therefore, only one amino acid in the protein sequence. B. do not disrupt the reading frame so the protein ends up completely normal. C. do not disrupt the reading frame so the protein will usually retain some degree of function. D. cause frameshifts that will change the reading frame and, therefore, the sequence of the protein. E. usually result in the expression of a truncated protein.
The Panamanian golden frog is in decline because of __________, which are being driven by ____________.
A. outbreaks of a virus, global climate change B. outbreaks of a fungus, deforestation C. introduced species, increased global trade D. outbreaks of a fungus, global climate change E. outbreaks of a virus, deforestation
Which of the following regulates the transportation of endangered species across international borders?
a. The Red List b. Migratory Bird Treaty Act c. CITES d. Endangered Species Act
What percent of its total genome does bee A donate to its offspring?
a. 50 percent b. 75 percent c. 0 percent d. 100 percent e. 25 percent