Hypophosphatemia is inherited as a sex-linked dominant trait. The relevant gene is found on the X chromosome. What is the expected outcome of a cross between a homozygous recessive woman and a man with hypophosphatemia?
A. Fifty percent of their daughters and fifty percent of their sons exhibit hypophosphatemia.
D. Twenty-five percent of their offspring exhibit hypophosphatemia.
C. All of their sons and none of their daughters exhibit hypophosphatemia.
D. All of their daughters and none of their sons exhibit hypophosphatemia.
D. All of their daughters and none of their sons exhibit hypophosphatemia.
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Which of the following are the final by-products of glucose oxidation during aerobic cell respiration?
A. ATP only B. heat only C. carbon dioxide only D. both ATP and heat only E. ATP, heat, and carbon dioxide
An experimental test of the hypothesis to explain the origin of the first organic compounds on Earth might include all of the following sequential steps except
A. assembling an atmosphere with H2, CH4, NH3, and H2S. B. placing this atmosphere over liquid water. C. inoculating with a few bacteria to get the process started. D. increasing the temperature of the gases. E. providing energy with electrical spark discharges.
What is the source of electrons for carbon fixation in plants?
a. O2 b. CO2 c. H2O d. H+ e. C6H12O6
When you feel threatened, the
neurotransmitter, ___, is released from ___ neurons and your response is to fight or flee.
a. acetylcholine--sympathetic b. acetylcholine--parasympathetic c. norepinephrine--sympathetic d. serotonin--sympathetic e. serotonin--parasympathetic