DNA is favored as the storage molecule of genetic information because it ____ than RNA
a. has more nucleotides
b. has greater chemical stability
c. can assemble into longer coding sequences
d. has more nucleotides and greater chemical stability
e. has greater chemical stability and can assemble into longer coding sequences
ANSWER: b
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A prolonged period without rain is causing a major drought in the American Midwestern states. How would you expect crops to respond initially to the stress caused by the drought?
A. They will take in more carbon dioxide. B. They will take in less carbon dioxide. C. They will release more oxygen. D. They will increase rates of photosynthesis. E. They produce fewer secondary metabolites.
In genetic analyses, researchers know that linkage of
genes will introduce exceptions to the principle of a. dominance. b. segregation. c. recessiveness. d. independent assortment. e. chromosomal inheritance.
Not all intercellular signals require transduction. Which one of the following signals would be processed without transduction?
A) a lipid-soluble signal B) a signal that is weakly bound to a nucleotide C) a signal that binds to a receptor in the cell membrane D) a signal that binds to the ECM
Which of the following cells are NOT part of the retina?
a. amacrine cells b. horizontal cells c. bipolar cells d. vertical cells e. ganglion cells