Dihybrid Genetics

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Page 128 Sex-Linked Traits #1
In fruit flies, eye color is a sex-linked trait. Red eye
color is determined by the dominant gene R, white eye
color is determined by the recessive allele r.
Diagram a cross between a
carrier female and a white eye male.
Remember: This sex-linked trait is found on
the X chromosome, not the Y.
Females have XX, but males have XY
X R X r x X r Y
red eyed white eyed
female male