File:EB1911 Cytology - maturation divisions (2).jpg
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DescriptionEB1911 Cytology - maturation divisions (2).jpg |
English: Maturation divisions: origin of the tetrads by ring formation in the spermatogenesis of the mole-cricket (Gryllotalpa) (vom Rath). a, primary spermatocyte with six split, bivalent chromosomes. b and c, Split has opened out. d, concentration of
the chromatin has made visible the belated transverse division. e and f, grouping of the completed tetrads in the equatorial plate of the first maturation division. |
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Date | published 1911 | ||||
Source | Encyclopædia Britannica (11th ed.), v. 7, 1911, “Cytology,” p. 718, fig. 11. | ||||
Author | From E. B. Wilson, The Cell in Development and Inheritance | ||||
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current | 16:31, 28 January 2017 | 800 × 715 (140 KB) | Bob Burkhardt (talk | contribs) | {{Information |Description ={{en|1=Maturation divisions: origin of the tetrads by ring formation in the spermatogenesis of the mole-cricket (''Gryllotalpa'') (vom Rath). ''a'', primary spermatocyte with six split, bivalent chromosomes. ''b'' and ''c... |
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