What cells directly terminate antigens?

A) suppressor T cells
B) helper T cells
C) cytotoxic T cells
D) cytotoxic B cells


C

Biology & Microbiology

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The most critical step in the Gram stain is the application of the:

a. safranin. b. crystal violet. c. Gram's iodine. d. Gram's decolorizer.

Biology & Microbiology

During which phase of meiosis will the chromosomes appear as a unit of four chromatids?

a. metaphase I b. telophase II c. anaphase II d. prophase I e. prophase II

Biology & Microbiology

Bacilli are ________ prokaryotes

A) spherical B) comma-shaped C) rod-shaped D) spiral

Biology & Microbiology

The missing product below is



A. O2
B. CO2
C. H2O

Biology & Microbiology