When a female Drosophila having white eye trait (X-linked) is crossed with a male having dominant red eye trait, what would be the possibility of these traits in the offspring of F1 generation?

Correct option is B

Correct Answer: (b)
Explanation:
White eye in Drosophila is an X-linked recessive trait. Cross: female (XᵂXᵂ) × male (X⁺Y). Daughters (XᵂX⁺) are phenotypically red-eyed (carrier), sons (XᵂY) are white-eyed. Thus all F1 males white, females red.
Information Booster:
X-linked recessive traits show different patterns in males (hemizygous) and females (homo/heterozygous).
Males inherit their X chromosome from the mother and Y from the father.
In this cross the mother supplies the mutant X to all sons.
Females receive X⁺ from father and Xᵂ from mother → phenotypically dominant (red).
Reciprocal crosses can give different F1 sex patterns for X-linked traits.
Additional Information (Incorrect Options):
(a) Reversed sexes — incorrect given allele distribution.
(c)/(d) All offspring same phenotype would only occur if parental alleles produced that outcome; here sexes differ due to X-linkage.