Much of what is known about the history of the origin of life came from:
a. written history.
b. word of mouth.
c. educated guesses.
d. the study of fossils.
e. None of the above; nothing is known about the history of the origin of life.
Ans: d. the study of fossils.
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A sprinter would have a high proportion of __________, and a marathon runner would have a high
proportion of __________. a. red fibers; white fibers b. fast-oxidative fibers; slow-oxidative fibers c. red fibers; fast-oxidative fibers d. red fibers; slow-oxidative fibers e. slow-oxidative fibers; slow-oxidative fibers
Each of the following sentences is true regarding homologous recombination except
A) The frequency of recombination is uniform across the genome. B) Homologous recombination involves RecA in prokaryotes and RAD51 in eukaryotes. C) Homologous recombination resolves the repaired strands using a Holliday junction. D) Homologous recombination involves a process known as homology searching. E) Homologous recombination involves the formation of a synaptonemal complex.
An example of an animal with an incomplete gut is a(n)
A. planarian. B. earthworm. C. squid. D. human. E. grasshopper.
The first day of football practice was rough on the squad. During practice, the players complained of cramps and sore muscles. Although there is evidence to suggest that many different factors may contribute to this, which of the following is most likely to play a role in the soreness?
A. carbon monoxide B. alcohol C. lactate D. carbon dioxide E. glucose