To convert a nucleoside into a nucleotide, what moiety must be added?
A. One or more pyrimidine bases
B. One or more phosphate groups
C. One or more double bonds
D. One or more purine bases
Answer: B
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Which portion of a phospholipid is hydrophilic?
a. fatty acid tails b. glycerol heads c. The entire phospholipid is hydrophilic. d. None of the phospholipid is hydrophilic.
Where in a diatom would you find its yellowish photosynthetic pigment?
A. in the plasma membrane B. in the cell wall C. in the cytoplasm D. in chloroplasts E. in the nucleus
Breeding a yellow dog with a brown dog produced puppies with both yellow and brown hairs
intermixed. This is an example of: a. variegation. b. codominance. c. incomplete dominance. d. epistasis. e. a polygenic trait.
The ________ drift up to the stratosphere, where UV radiation causes them to break down to their atomic form, one of which breaks down ozone
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