Heredity and sex . Fio. 2. — Conjugation in Paramcxjcium. The niicronucleus in one indi-vidual is represented in Ijlack, in the other by cross-lines. The macro-nucleus in both is stippled. A-C, division of micronucleus into 2 and4 nuclei; C^-D, elongation of conjugation nuclei, which interchange andrecombine in E; F-J, consecutive stage in one ex-conjugant to show threedivisions of new micronucleus to produce eight micronuclei {J). In lowerpart of diagram th(! first two divisions of the ex-conjugant (/) with eightmicroriufhi arc shown, Ijy means of which a redistribution of the eightiiiicronuc
Heredity and sex . Fio. 2. — Conjugation in Paramcxjcium. The niicronucleus in one indi-vidual is represented in Ijlack, in the other by cross-lines. The macro-nucleus in both is stippled. A-C, division of micronucleus into 2 and4 nuclei; C^-D, elongation of conjugation nuclei, which interchange andrecombine in E; F-J, consecutive stage in one ex-conjugant to show threedivisions of new micronucleus to produce eight micronuclei {J). In lowerpart of diagram th(! first two divisions of the ex-conjugant (/) with eightmicroriufhi arc shown, Ijy means of which a redistribution of the eightiiiicronucl(;i takes place. See also P^ig. 100. THE EVOLUTION OF SEX E 1
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Keywords: ., boo, bookcentury1900, bookdecade1910, booksubjectsex, bookyear1913
