Phenylketonuria is a result of a deficiency of the enzyme ____________________. Fill in the blank(s) with the appropriate word(s)
ANS: phenylalanine hydroxylase
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Aerobic respiration, anaerobic respiration, and fermentation are the three basic types of
A. chemoorganoautotrophic metabolism. B. photolithoautotrophic metabolism. C. chemolithoautotrophic metabolism. D. chemoorganoheterotrophic metabolism.
When a(n) ____ by mutation, it confers a selective growth advantage to the cell
a. tumor suppressor gene is activated b. oncogene is inactivated c. proto-oncogene is inactivated d. tumor suppressor gene is inactivated e. apoptosis gene is activated
You enjoy a lot of salt on your food. One of the long-term effects will be an increase in blood volume. This increase in
blood volume will eventually result in a(n): a. decrease in cardiac output. b. increase in blood pressure. c. decrease in stroke volume. d. decrease in the force of contraction of the heart. e. increase in body temperature.
The allele frequency of a population is the
A) sum of all genes in that population. B) number of different types of alleles in that population. C) relative proportion of a given allele in that population. D) number of all alleles in that population.