Card 91 / 101: The designation his- refers to
A)
the genotype of a bacterium that lacks a functional gene for histidine synthesis.
B)
the genotype of a bacterium that has a functional gene for histidine synthesis.
C)
the opposite of a hers gene.
D)
bacteria that are auxotrophic for histidine.
E)
the genotype of a bacterium that lacks a functional gene for histidine synthesis AND bacteria that are auxotrophic for histidine.
Answer:
E) the genotype of a bacterium that lacks a functional gene for histidine synthesis AND bacteria that are auxotrophic for histidine.
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