A newly synthesized polypeptide will ultimately be located within the phospholipid bilayer of the plasma membrane. When this polypeptide folds to form its tertiary structure, the ________ amino acid R-groups will most likely be facing outward.
A. hydrophobic
B. hydrophilic
Answer: A
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Which of the following is NOT an example of
gene flow?
a. several chimpanzees migrate from their colony to join another one close by b. spores from a mushroom are carried by the wind thousands of miles c. wild cherries are eaten by a migrating bird and the seeds released many miles away d. a small group of humans left Africa about 100,000 years ago and established new colonies in the middle East and Europe e. all of these are examples of gene flow
Beta amyloid plaques are most often seen in persons suffering from
a. Parkinson's disease. b. Alzheimer's disease. c. heart attacks. d. muscular dystrophy. e. multiple sclerosis.
The action spectrum of photosynthesis best matches the absorption spectrum of:
a. ATP. b. NADPH. c. carotenoids. d. carbohydrates. e. chlorophylls a and b
Which enzyme is made up of both RNA and protein?
A) RNA polymerase B) nucleosome C) ribosome