When microbes are in the dark, they do not produce molecules called carotenoids because the PR proteins are bound to DNA. In the light, however, carotenoids are produced because the PR proteins unbind the DNA. Which of the following graphs best
summarizes these statements about carotenoid production in microbes?
A) 
B) 
C) 
D) 
Answer: B
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A taxon that does not include the last common ancestor of all its members is a _____ group
A. monophyletic B. paraphyletic C. polyphyletic
Each nucleotide in a strand of DNA is composed of a(n) ____________________, a(n) ____________________, and
a(n) ____________________. Fill in the blank(s) with the appropriate word(s).
In what way was the interrupted mating technique used to generate a genetic map in E. coli based on time?
What will be an ideal response?
Refer to Figure 56-2. Which of the following represents the fall turnover?
a. 1 going to 2 b. 2 going to 3 c. 3 going to 4 d. 4 going to 1 e. 4 going to 2 What will be an ideal response?