Observing a karyotype for a fetus, an obstetrician notices that for the 16th chromosome, there are 3 structures shown. What sort of chromosomal abnormality does this fetus have?
A. Polyploidy
B. Incomplete dominance
C. A monosomy
D. A trisomy
Answer: D
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Which of the epithelial membranes encases individual organs?
A) Cutaneous B) Mucous C) Visceral D) Parietal
As a result of the long refractory period in the cardiac action potential, cardiac muscle cannot exhibit
A) tonus. B) treppe. C) tetany. D) recruitment. E) fatigue.
C. both A and BWhich of the following are potential consequences of spinal fractures?
A. paralysis B. death C. both A and B D. none of the above
Which of the following statements is true?
A. When the pressure in the lung is greater than inside the body, air flows from the body until the pulmonary and atmospheric pressures are equal. B. When the pressure in the lung is greater than outside the body, air flows from the body until the pulmonary and atmospheric pressures are equal. C. When the pressure in the lung is greater than outside the body, air flows into the body until the pulmonary and atmospheric pressures are equal. D. When the pressure in the lung is less than outside the body, air flows from the body until the pulmonary and atmospheric pressures are equal.