单词 | hfr strain |
释义 | Hfr strainHFR strain, Hfr strainHfr straina strain of a bacterium, typically Escherichia coli, that has the ability to transfer a chromosome to an F- cell and shows a H igh f requency of r ecombination. The F PLASMID (F FACTOR) is integrated into the chromosome of the Hfr cell. Different Hfr strains will have the F plasmid integrated at different sites in the chromosome. |
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