Which of the following is not a part of the scientific method?
A. Experimenting.
B. Observing.
C. Proving.
D. Hypothesizing.
Answer: C. Proving.
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Which of the following proteins is central to starvation survival strategies in many bacteria?
A. RpoS B. Fts Z C. Superoxide dismutase D. ATPase
What is meant by the term pseudogene?
What will be an ideal response?
For the following questions, choose the letter from the list below that best matches the description (please note the answer should be a single uppercase letter):A. desertB. savannaC. taigaD. temperate grasslandE. tropical rain forestTropical; grassland with scattered trees; seasonally dry; nutrient poor soils; large grazing mammals.
Fill in the blank(s) with the appropriate word(s).
GGG and GGC are codons for the amino acid, glycine. A mutation caused the insertion of a cytosine in place of the guanine during DNA replication. Over many generations the DNA changes so that the frequency of GGC is similar to that of GGG. What effect does this mutation have on the population's mean fitness?
A. As the frequency of the GGC codon increases, the population's mean fitness level will initially increase, but once GGC and GGG occur with equal frequency, the mean fitness will decrease. B. As the frequency of the GGC codon increases, the population's mean fitness level will remain the same. C. As the frequency of the GGC codon increases, the population's mean fitness level will decrease. D. As the frequency of the GGC codon increases, the population's mean fitness level will increase.