Atractyloside is a poison that inhibits the transport of ADP from the cytosol across the mitochondrial membranes and into the mitochondrial matrix. The direct effect of this drug is to stop ATP synthesis because:
A. ADP is a necessary substrate for the
reaction catalyzed by ATP synthase.
B. it prevents proton pumping across the
inner mitochondrial membrane.
C. it prevents electron transfer to O2.
D. it prevents electron transfer from NADH to
complex I.
A
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A particular gene that controls seed coat color in peas also determines the susceptibility of these peas
to a particular disease. This situation is referred to as: a. varigation. b. additive dominance. c. codominance. d. pleiotropy. e. incomplete dominance.
Hypersecretion of growth hormone in adulthood leads to enlarged hands, face, and feet, a condition known as:
a. dwarfism. b. gigantism. c. acromegaly. d. goiter. e. cretinism
Strain differences are helpful in
A. replica plating. B. electrophoresis. C. transformation. D. transduction. E. tracing the source of outbreaks of disease
Menstruation begins in response to
a. rising levels of FSH and LH. b. rising levels of GnRH. c. rising levels of progesterone. d. falling levels of progesterone. e. rising levels of estrogen.