Individuals who are ____ for sickle cell hemoglobin tend to be ____ resistant to falciparum malaria, but do not

experience the effects of sickled red blood cells.


a. homozygous dominant; more
b. homozygous dominant; less
c. homozygous recessive; less
d. heterozygous; more
e. heterozygous; less


d

Biology & Microbiology

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A nasopharyngeal aspirate is cultured on Bordet-Gengou agar, and growth is observed. The colonies are also subjected to a direct fluorescent antibody (DFA) stain, which is also positive. On the basis of these findings, the antimicrobial therapy that should be administered to the pa-tient is:

a. azithromycin. b. gentamycin. c. streptomycin. d. imipenem.

Biology & Microbiology

Symptoms of multiple sclerosis

a. include muscle weakness. b. include impaired coordination. c. include vision problems. d. typically begin between the ages of 20 and 40. e. are described by all of these.

Biology & Microbiology

The ____ bone is the largest in the human body

a. humerus b. femur c. ulna d. tibia e. radius

Biology & Microbiology

Which of the following illustrates hydrolysis?

a. the reaction of two monosaccharides to form a disaccharide b. the reaction of two amino acids to form a dipeptide c. the reaction of a hydrogen atom and a hydroxide ion to form water d. the reaction of a fat to form glycerol and fatty acids e. the formation of ATP from ADP and inorganic phosphate

Biology & Microbiology