The Gram-staining procedure is an example of ________.

A. negative staining
B. differential staining
C. fluorescent staining
D. simple staining


Answer: B

Biology & Microbiology

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If a population speciates in the absence of a

physical barrier it is known as

a. sympatric speciation. b. disruptive selection. c. directional selection. d. hybrid sterility. e. allopatric speciation

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The epidemic relapsing fever in humans is transmitted by

A. hard-shelled ticks B. body louse C. direct contact D. soft-shelled ticks

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During which phase does DNA replication stop and the DNA begin to appear grainy and start to condense?

A. Interphase B. Early prophase C. Prophase D. Anaphase E. Early anaphase

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The urethra in females is much longer than in males.

Answer the following statement true (T) or false (F)

Biology & Microbiology