All viral hemorrhagic fever outbreaks have been confined to the Eastern Hemisphere
Indicate whether the statement is true or false
FALSE
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If .04 percent (.0004) of the people in a population have sickle cell anemia, the percent of
heterozygotes in the population must be ____________________. Fill in the blank(s) with the appropriate word(s).
Why does lack of oxygen result in the halt of ATP synthesis?
a. It causes one of the cytochromes in the electron transport chain to be permanently stuck in the reduced state. b. Oxygen prevents uncoupling of the electron transport chain. c. The chain shuts down and can no longer pump hydrogen ions across the membrane, and the proton gradient cannot be maintained.
The atomic nucleus consists of
a. neutrons and electrons. b. neutrons only. c. protons and electrons. d. neutrons and protons. e. protons only.
The foul-smelling putrescine byproduct suggests activity of
A) amino acid fermentation by clostridia. B) secondary fermentation. C) sulfur-oxidizing bacteria. D) syntrophic carbohydrate metabolism.