What is the name of the human disorder in which a deletion from chromosome 5 typically leads to severe mental retardation and a malformed larynx?
a. triple-X syndrome
b. cri-du-chat
c. Down syndrome
d. Turner syndrome
Ans: b. cri-du-chat
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True cocci, such as most Neisseria spp. and Moraxella catarrhalis, can be differentiated from morphologically similar Moraxella species by:
a. comparing the penicillin susceptibility testing results of the bacteria. b. subjecting the bacterium to noninhibitory concentrations of penicillin. c. identifying the resistance of Moraxella to many <-lactam antimicrobial agents. d. performing the deoxyribonucleic acid (DNA) test.
Attenuated agents
A. may induce immunity after a single dose. B. may cause disease in immunocompromised individuals. C. multiply in the body. D. may revert or mutate to disease-causing strains. E. All of the choices are correct.
Spherical-shaped bacteria that divide and remain attached in a chain-like pattern are called:
A. Staphylococci B. Streptococci C. Streptobacilli D. Staphylobacilli
If, during a dissection, you were asked to place a pin in the part of the kidney containing the collecting duct, you would pin the
What will be an ideal response?