Pathogenicity The organisms of botulism, tetanus, and diphtheria are distinguished by their
A. Production of spores
B. Chemotaxis
C. Ability to produce coagulase
D. Growth in anaerobic environments
E. Production of exotoxins
Answer: E. Production of exotoxins
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Which are common means by which patients acquire healthcare-associated infections?
a. contaminated food b. resident biota infections c. fomite transmission d. infections of damaged tissue
A generation-to-generation change in a poulation's frequencies of alleles defines _______
Fill in the blank(s) with the appropriate word(s).
The part of a chlorophyll molecule that absorbs light energy is the porphyrin ring
__________________ Indicate whether the statement is true or false.
Who first confirmed that the replication of DNA was semiconservative?
a. Chargaff and Hershey b. Watson and Crick c. Avery and Griffith d. Meselson and Stahl e. Watson, Crick, and Wilkins