Heredity and sex . es out entire into thepolar body. In consequence the number of chromo-somes left in the egg is one less than the total a word, there are five chromosomes in the male,while there are six chromosomes in the female (Fig. 93).By throwing out one chromosome, the change is chromosome is the mate of the sex chromosome,that appeared as a lagging chromosome in the spermato-genesis. In the large egg no such diminution takes place,consequently the diploid number of chromosomes ispresent in the female. These unite in pairs and arereduced to three when the two pola
Heredity and sex . es out entire into thepolar body. In consequence the number of chromo-somes left in the egg is one less than the total a word, there are five chromosomes in the male,while there are six chromosomes in the female (Fig. 93).By throwing out one chromosome, the change is chromosome is the mate of the sex chromosome,that appeared as a lagging chromosome in the spermato-genesis. In the large egg no such diminution takes place,consequently the diploid number of chromosomes ispresent in the female. These unite in pairs and arereduced to three when the two polar bodies of thesexual egg are produced. We see that by means of the chromosomes we can PARTHENOGENESIS 181 bring this case into line with the rest of our informa-tion bearing on the relation of the chromosomes to important point still remains to be causes some of the migrants to produce large J^NYLLOXERA CARYMCAULIS ^ema/ of tfin^ui ^eri. • o o O O i Crrs «:r:? O o TcrCoA/ Sfhi/ndie oo If/.
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Keywords: ., boo, bookcentury1900, bookdecade1910, booksubjectsex, bookyear1913
