Heredity and sex . er containing no X, and therefore none of thefactors in question. The chance meeting of these twoclasses of sperm and the four classes of eggs gives thefollowing results: Fi eggs GRX — GWX — YRX — YWXFi sperm GRX Females. GRXGRX gray-red. — GRXGWX gray-red. — GRXYRX gray-red. — GRXYWX gray-red. — yellow-white. All the females are gray with red eyes, since theseare the dominant characters. There are four classesof males. These males give a measure of the kinds ofeggs produced by the females, since the male-producingsperms,
Heredity and sex . er containing no X, and therefore none of thefactors in question. The chance meeting of these twoclasses of sperm and the four classes of eggs gives thefollowing results: Fi eggs GRX — GWX — YRX — YWXFi sperm GRX Females. GRXGRX gray-red. — GRXGWX gray-red. — GRXYRX gray-red. — GRXYWX gray-red. — yellow-white. All the females are gray with red eyes, since theseare the dominant characters. There are four classesof males. These males give a measure of the kinds ofeggs produced by the females, since the male-producingsperms, having no sex chromosomes, do not affectthe sex-linked characters derived through the sexchromosome of the Fi female. The expected proportionis therefore: 90 HEREDITY AND SEX GR9 GR$ GW$ YR$ YW $ 4 1111 These results are illustrated by means of Fig. 48,in which the yellow color of the fly is indicated bystippling the body and wings, and the red eyes byblack. The X chromosome is also marked and colored. XX
Size: 1183px × 2113px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., boo, bookcentury1900, bookdecade1910, booksubjectsex, bookyear1913
