I have a little challenge with what my lecturer said in class. I disagree with explanation but don't know how to convince myself. Please review and tell me your opinion.
Eye-color in drosophila is a sex-linked trait in which a white eye male was crossed with a red eye female. The F1 generation consist of 54 white eye and 49 red eye female; and 47 white eye and 50 red eye male. Explain.?
He said and I quote
"the white eye male will transfer the white eye allele to the F1 female generation while the red eye female will transfer her red eye allele to the F1 male generation"
I disagreed because his explanation didn't account for the red eye f1 female generation and the white eye f1 male generation.... I proposed that the female parent was heterozygous for the eye color trait..... Hence a cross shows that the phenotypic ratios for either eye colors for any sex is 1/4...In response he acclaimed there's no dominance since it's a deviation from medellian principle.