In modern day Finland, the blond hair and blue eyes of most individuals is the result of ____
a. natural selection
b. genetic drift
c. gene flow
d. inheritance
e. mutations
ANSWER: b
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Placing a ripe apple with other apples that are not ripe will cause the other apples to ripen sooner due to the release of
____.
a. brassinosteroids b. ethylene c. auxins d. oligosaccharins e. abscisic acid
When you consider the contribution of NADH and FADH2, how many of the 32 total ATP molecules
produced in cellular respiration come from the citric acid cycle?
a. 32 b. 28 c. 24 d. 20 e. 16
A fish in which a sharp spine is associated with the dorsal fins is the:
a. spiny dogfish. b. sea bass. c. hagfish. d. sea horse. e. goldfish.
A new antibiotic is developed that interferes with the way tRNA fits into bacterial ribosomes. How would this kill the bacteria?
A) Ribosomes would not be able to produce mRNA, and cell functions would halt. B) The bacteria would be unable to produce necessary enzymes to carry out basic metabolism. C) The tRNA would be unable to carry out transcription. D) tRNA would not unwind the DNA to allow DNA polymerase to copy it; thus, cell division would stop.