Hyaluronidase is a virulence factor in ________.

A. cold virus
B. clostridia
C. amoebic dysentery
D. diphtheria
E. ringworm


Answer: B

Biology & Microbiology

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If scientists were able to identify a specific gene mutation that was strongly correlated with

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RNA cannot be cloned directly. ________, a viral enzyme, is used to convert single-stranded RNA

into ___________ for cloning. Fill in the blank(s) with the appropriate word(s).

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External fertilization

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Ca3(PO4)2 represents a(n)

A. element. B. atom. C. mixture. D. isotope. E. compound.

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