Introns are ________
A) noncoding DNA sequences
B) DNA sequences to which activators bind
C) expressed DNA sequences
D) the product of RNA splicing
A
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Exposure of which of the following regions of a molecule of DNA permits the reading of DNA sequence without opening the double helix?
A) phosphate groups B) phosphodiester bonds C) major groove D) minor groove
Cholesterol can be remodeled into
a. bile salts. b. sex hormones. c. steroids. d. vitamin D. e. all of these.
In yeast, which gene would you expect to be activated during phosphate starvation?
What will be an ideal response?
The relationship between lactic acid and pyruvic acid is that
A. lactic acid is formed only in milk. B. lactic acid is formed from pyruvic acid in fermentation. C. one has phosphate and the other doesn't. D. one is twice as big (6 carbons) as the other (3 carbons).