Involves aggregated data on the population level. ecologic fallacy
a. ecologic study
b. case study
c. repressed study
d. none of the above
Ans: a. ecologic study
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The ability to perceive a bitter taste from certain chemicals including PTC has been linked to certain alleles
Which of the following would provide an explanation for the fact that almost all nonhuman primates have the "taster" phenotype, whereas the human population has a significant percentage of "nontaster" phenotypes? A. The advantage to being able to taste bitter compounds would keep you from eating poisonous compounds, an advantage not needed in the human population anymore. B. The advantage to not being able to taste bitter compounds means that humans are more likely to eat vegetables and hence live longer than nonhuman primates. C. Nonhuman primates only eat foods that are not bitter, so the phenotype of tasting bitter compounds was not selected against. D. Humans needed the ability to not taste bitter compounds, so the mutation happened. d.
Rubisco has 16 subunits joined together to make a functional unit. Eight of the subunits are large, the
other 8 are small. Where on this enzyme are the active sites located?
a. on each of the 8 large subunits b. on each of the 8 small subunits c. on one of the 8 large subunits d. on one of the 8 small subunits e. on each of the 16 subunits
The viral oncogene associated with the Rous sarcoma virus is the
A) RAS gene. B) p53 gene. C) ERBB2 gene. D) v-sis gene. E) src gene.
One of the products of a reaction occurring in a cell is water. What type of reaction is likely to be involved?
A. a decomposition reaction B. a hydrolysis reaction C. an exchange reaction D. a synthesis reaction E. The answer cannot be determined from the available information.