Which of the following acts enzymatically rather

than hormonally?
a. cholecystokinin
b. pepsin
c. secretin
d. gastrin
e. leptin


Answer: b

Biology & Microbiology

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Which human populations have the highest levels of genetic variation?

A. European populations B. African populations C. Asian populations D. Melanesian populations E. North and South American populations

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The most important advantage of sexual

reproduction is related to

a. increased production of offspring. b. avoiding predators. c. avoiding harmful mutations. d. producing offspring identical to the parents. e. the advantage of having two sexes

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What are the three types of posttranscriptional processing, and what are the consequences of preventing each of these modifications in terms of gene expression?

What will be an ideal response?

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Which molecule becomes "charged" with an amino acid on its 3' end?

a. snRNA b. tRNA c. mRNA d. pre-mRNA

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