Activated G protein-coupled receptors can ____________.

a. bind GTP
b. open an ion channel
c. raise cytosolic calcium
d. a and b are correct
e. a, b and c are correct


Answer: e. a, b and c are correct

Biology & Microbiology

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Which of the following statements is NOT

correct about autosomes?

a. Autosomes are chromosomes that are found in both males and females. b. In a human cell, all chromosomes are autosomes, except chromosomes "X" and "Y." c. In birds, moths, and butterflies, autosomes determine the sex of the individual. d. A characteristic carried by autosomes would be passed to offspring males and females. e. More than one of these statements is incorrect.

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California retains only about __________ percent of

its original coastal redwoods. a. 1 b. 4 c. 10 d. 15 e. 20

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In what stage of translation does the peptide bond join two amino acids?

a. initiation b. transcription c. elongation d. reparation e. termination

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Salmon are able to live in both fresh water and salt water. Salmon are therefore:

A. conformers. B. effectors. C. regulators. D. conditioned.

Biology & Microbiology