Archive image from page 173 of The cytology and life-history of. The cytology and life-history of bacteria cytologylifehist00biss Year: 1955 - •-'a: \cs » ' (Keproducfd from Cold SpnnK Ha/hor Symposia). Fig. 68 DIPLOID OR POLYPLOID FORMS OF NUCLEUS (1) Cells of Bacterium coli known to be genetically diploid. {By permission of Dr. J. Lederberg). (2) Presumed diploid or polyploid nuclei in post-fusion stages of a .sporing bacillus. (3) Secondary mycelium of Streptomyces. In the sections deahng with the nature of the chromosome it has already been argued that the behaviour of the nuclear ma
Archive image from page 173 of The cytology and life-history of. The cytology and life-history of bacteria cytologylifehist00biss Year: 1955 - •-'a: \cs » ' (Keproducfd from Cold SpnnK Ha/hor Symposia). Fig. 68 DIPLOID OR POLYPLOID FORMS OF NUCLEUS (1) Cells of Bacterium coli known to be genetically diploid. {By permission of Dr. J. Lederberg). (2) Presumed diploid or polyploid nuclei in post-fusion stages of a .sporing bacillus. (3) Secondary mycelium of Streptomyces. In the sections deahng with the nature of the chromosome it has already been argued that the behaviour of the nuclear material at cell division indicates that all the nuclear units contained in the vegetative cell must be of equal value, that is, the cell is haploid but multinucleate. In sexual conjugation the two partners appear to be similar in status, and in bacteria of this type reduction
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