The gain of electrons by a molecule is called
a. inhibition
b. entropy
c. oxidation
d. reduction
Answer: d. reduction
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Smooth muscles can be activated by all of the following except:
A. the somatic nervous system. B. hormones. C. nitric oxide. D. pH. E. stretch of the muscle.
Intervening sequences that are transcribed, but not translated into protein are called
A. exons. B. introns. C. spliceosomes. D. transposons. E. transcription factors.
If the incidence of Tay-Sachs is 1/3,600 Ashkenazim births, what is the heterozygote (carrier) frequency?
A) 0.0003 B) 0.033 C) 0.286 D) 0.017
Which of the following is not true of molecular chaperones?
(a) They assist polypeptide folding by helping the folding process follow the most energetically favorable pathway. (b) They can isolate proteins from other components of the cells until folding is complete. (c) They can interact with unfolded polypeptides in a way that changes the final fold of the protein. (d) They help streamline the protein-folding process by making it a more efficient and reliable process inside the cell.