An _______ is a general term for a substance that stimulates an immune response.

A. IgE
B. antigen
C. histamine
D. interferon


Answer: B. antigen

Biology & Microbiology

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A bacterium capable of causing disease in a host is a(n) ________

Fill in the blank(s) with correct word

Biology & Microbiology

Which of the following is NOT characteristic of the glycocalyx found in bacteria?

a. a structure that can be visualized using an acidic negative stain and a basic counterstain b. if firmly attached, contributes to bacterial virulence c. creates a slimy, slippery coating that prevents bacteria from attaching to surfaces d. a viscous coating surrounding the cell made of polysaccharide, polypeptide, or both

Biology & Microbiology

Human herpesvirus (1/2/3/4 ) is usually associated with lesions on the genitalia

What will be an ideal response?

Biology & Microbiology

With incomplete dominance, a likely ratio resulting from a monohybrid cross would be ________

A) 3:3 B) 9:3:3:1 C) 3:1 D) 1:2:1 E) 1:2:2:4

Biology & Microbiology