Which of the following will NOT result in a proto-oncogene's conversion into an oncogene?
a. A mutation in the proto-oncogene's promoter that increases transcription of the gene.
b. A mutation in the coding sequence of a protein that renders a protein abnormally active.
c. An alteration to the p53 coding sequence rendering the p53 protein inactive.
d. An introduction of new DNA sequences to a chromosome that alters the regulation of the
cell cycle.
e. The translocation of a proto-oncogene to a location in the cell and under the control of a
more active promoter than present in the original location.
C
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Which of the following was a biological fact important to the development of Darwin's ideas about evolution?
A. Organisms typically produce huge numbers of offspring. B. There are differences among members of the same species. C. There is a high death rate among organisms. D. All of these are true.
While walking along a trail in the woods you notice that your dog walks over to a tree and urinates on the base of the largest tree on the trail. Your dog's behavior is an example of
Select one: a. visual communication. b. auditory communication. c. tactile communication. d. chemical communication. e. learning.
Water content, pH and nutrients are (extrinsic/intrinsic/microbial) factors that contribute to food spoilage.
Fill in the blank(s) with the appropriate word(s).
Which of the following elements were MOST likely the electron donors and electron acceptors of early microorganisms?
a. NADH / O2 b. NADH / fumarate c. NO2- / O2 d. H2 / S0