Which one of the following antimicrobial agents is an inhibitor of cell wall synthesis?

A) tetracycline
B) penicillin
C) chloramphenicol
D) erythromycin


Answer: B) penicillin

Biology & Microbiology

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The aging of a plant from the time of full

maturity is known as

a. senescence. b. photoperiodism. c. abscission. d. dormancy. e. chlorosis

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Viroids infect

A) bacteria. B) plants. C) fungi. D) plants and animals. E) all organisms.

Biology & Microbiology

What evolutionary model for the maintenance of sexual reproduction do the following data appear to support?

a. Muller's ratchet b. the red queen hypothesis c. the Fisher–Muller hypothesis d. the environmental unpredictability hypothesis

Biology & Microbiology

Humans (which have a chromosome number of 2n=46) have 92 chromosomes during G2

a. True b. False

Biology & Microbiology