In a colony of 100 guinea pigs, 16 show the recessive trait of bristly hair. What is the percentage of
heterozygotes in the population?
a. 48 percent
b. 52 percent
c. 36 percent
d. 24 percent
e. 84 percent
A
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The component that enriches chocolate agar is
A) chocolate. B) methyl brown indicator dye. C) heat-lysed blood cells. D) None of the answers are correct.
Which of the following molecules would most likely require a transport protein to cross the plasma membrane of a red blood cell?
A. CO2 B. H2O C. O2 D. C6H12O6
The tuft of fenestrated capillaries at which filtration takes place in the mammalian kidney is referred to as the
A. glomerulus. B. Bowman's capsule. C. renal corpuscle. D. proximal convoluted tubule. E. collecting duct.
The type of photosynthesis that does not produce oxygen
A. occurs in algae and plants. B. occurs in purple and green sulfur bacteria. C. occurs in cyanobacteria. D. does not require sunlight. E. does not require CO2 as a reactant.