Final answer:
The expected ratio of offspring resulting from a cross between a white-eyed male and a heterozygous female for red eye color is 25% XwXW, 25% XwXw, 25% XWXw, and 25% XwY.
Step-by-step explanation:
The cross between a white-eyed male and a female that is heterozygous for red eye color follows the principles of Mendelian genetics. Since the male is white-eyed and the female is heterozygous for red eyes, the male's genotype must be recessive (XwY) and the female's genotype must be heterozygous (XWXw). Therefore, the possible genotypes of their offspring are XwXW, XwXw, XWXw, and XwY.
Each offspring has a 25% chance of receiving any of these genotypes because of random segregation and fertilization. Therefore, the expected ratio of offspring from this cross is 25% XwXW (white-eyed females), 25% XwXw (white-eyed females), 25% XWXw (heterozygous females with red eyes), and 25% XwY (white-eyed males).