Adhesive pili, exotoxins, and capsules are all microbial factors that help them establish infection. These are examples of
A. pathogenicity factors.
B. infectivity factors.
C. exogenous factors.
D. virulence factors.
Answer: D
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In corn, having ligules (L) is dominant to liguleless (l), and green leaves (G) is dominant to white leaves (g). If a testcross is performed with a dihybrid plant with ligules and green leaves, what proportion of the progeny would be green and liguleless?
A) 1/16 B) 1/8 C) 1/4 D) 1/2 E) Cannot be determined
Some forms of methylmalonic acidemia can be ____
a. caused by ethylene glycol exposure b. caused by tainted baby formula c. caused by type O blood transfusions d. cured if the condition is detected early in life e. treated successfully if the condition is detected early in life
A compound that dissociates in water to produce ________ is called a salt
A) hydrogen ions B) anions C) hydroxyl ions D) cations E) anions and cations
Based upon the chemical experiments you performed, how would you classify these life-forms?
A) fungi B) bacteria C) protists D) archaea