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A lab technician has four strains of bacteria. Although he forgot to label them, he knows that they ...

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A lab technician has four strains of bacteria. Although he forgot to label them, he knows that they ...

A lab technician has four strains of bacteria. Although he forgot to label them, he knows that they include one F+ strain, one Hfr strain, one F' strain, and one F- strain. He observed the following results after plating these strains on different media. Which of the following plates can be used to identify the F- strain?

strain	his	glu	cys	leu	str
F+	+	+	+	-	+
Hfr	+	+	+	+	-
F'	+	+	+	+	-
F-	-	-	-	+	+

▸ complete media

▸ minimal media with histidine, glutamate, and cysteine

▸ minimal media with histidine, glutamate, cysteine, and streptomycin

▸ minimal media with streptomycin

▸ minimal media with leucine and streptomycin

Textbook

Genetic Analysis: An Integrated Approach

Edition: 3^rd

Authors: Sanders, Bowman

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