Which of the statements below is true about
warfarin?
a. It is a very effective rodenticide.
b. It interferes with blood clotting in rats.
c. Rats that are resistant to warfarin possess a
gene that is rare among vulnerable rats.
d. It is an agent of natural selection in rats.
e. All of these are true.
E
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Glucose is stored in plants as _________ and in animals as _________
A. glycogen; starch B. cellulose; glycogen C. starch; cellulose D. starch; glycogen E. cellulose; starch
As a transcription factor, Pax6:
A. targets the approximately 2000 genes needed for eye development. B. binds to the 3' regulatory elements of its target genes. C. activates its target genes. D. represses its target genes. E. activates some target genes and represses others.
The pulmonary artery carries blood away from the ____
a. aorta b. right atrium c. right ventricle d. left atrium e. left ventricle
Spermatogenesis
A. occurs in the seminiferous tubules. B. begins at birth. C. involves one cell dividing into 4 by mitosis. D. produces a few hundred cells per day.