1887

Abstract

SUMMARY: Further recombination data have been obtained from matings involving different F auxotrophic mutants of strain K-12 with the same K-12 F auxotroph. Variations in the distribution of sugar fermentation markers among the progeny have been explained by the influence of the ‘contra-selected’ F auxotrophic marker. It is suggested that the data supports the conception of a single linear chromosome in K-12, which fragments randomly during recombination.

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/content/journal/micro/10.1099/00221287-11-2-250
1954-10-01
2021-08-01
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