Answer:
Sex-linked inheritence
Explanation:
The eye colored gene must be linked in the X Chromosome.
Morgan studied this kind of inheritence, with Drosofila melanogaster. The first white-eyed fly he found was male, and when this fly was crossed with normal, red-eyed female flies, the F1 offspring were all red-eyed, telling Morgan that the white allele was recessive.
But when the F1 flies were crossed: All of the female F2 were red-eyed, while about half of the male F2 were white.eyed.
