By analogy, a tumor suppressor gene would correspond to what part of an automobile?
a. gas pedal
b. engine
c. windshield
d. fuel tank
e. brake
Answer: e. brake
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The part of a membrane protein that extends through the phospholipid bilayer is primarily composed of amino acids that are
A. highly polar. B. negatively charged. C. non-polar. D. positively charged. E. water soluble.
Like other animals, penguins of the north can keep
warm because of layers and patches of __________ in their bodies. a. adipose tissue b. proteins c. carbohydrates d. sterols e. phospholipids
Describe how phytochrome is used to determine plant spacing.
What will be an ideal response?
Which carbon(s) in the pentose sugar in RNA and DNA is/are covalently linked in a phosphodiester bond?
a. the 1' carbon b. the 2' and 5' carbons c. the 1' and 3' carbons d. the 3' and 5' carbons