After the primary stain has been added but before the decolorizer has been used, Gram-positive organisms are stained ________ and Gram-negative organisms are stained ________.

A. purple; purple
B. purple; colorless
C. purple; pink
D. pink; pink


Answer: A

Biology & Microbiology

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In __________, a pair of nonidentical alleles

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Cytochrome c is a small protein that is found in present-day organisms. Comparison of the structure of cytochrome c from different organisms to infer evolutionary relationships would be part of the science involving

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