Class I and II MHC molecules
A. contains alpha-1 and alpha-2 domains that forms an antibody-binding pocket.
B. consists of a complex of two protein chains and contains alpha-1 and alpha-2 domains that forms an antibody-binding pocket.
C. consists of a complex of two protein chains.
D. neither consists of a complex of two protein chains nor contains alpha-1 and alpha-2 domains that forms an antibody-binding pocket.
Answer: C
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Some deer mice are physiologically adapted to live at high altitudes because of the following:
a. adults maintain fetal forms of hemoglobin. b. mutations in hemoglobin that increase its oxygen-binding affinity. c. mutations in myoglobin that increase its oxygen-binding affinity. d. mutations that increase heart rates. e. mutations that decrease heart rates.
SCNT with human cells is called _____
Fill in the blank(s) with correct word
The letter “A” in the above figure represents the
a. style. b. ovary. c. stigma. d. anther. e. filament.
Carbonic anhydrase inhibitors cause less movement of carbonic acid toward carbon dioxide production and are used as a prophylactic treatment of altitude sickness
Altitude sickness occurs when a hiker ascends to altitudes where the density of oxygen is low. How does this decrease the symptoms of high altitude sickness? A) The excess hydrogen ions are excreted in the urine and the resulting loss of acidity increases respiration rate. B) The excess bicarbonate ions are excreted in the urine and the resulting loss of blood pressure increases respiration rate. C) The excess bicarbonate ions are excreted in the urine and the resulting increase in blood acidity leads to an increase in ventilation. D) The excess bicarbonate ions in the blood increase the affinity of hemoglobin for oxygen.