Question

in morgans experiments, the white eye allele in drosophila was shown to be
multiple choice
○ dominant.
○ located on the x chromosome.
○ located on an autosome.
○ codominant.
○ located on the y chromosome.

Explanation:

Morgan's experiments with Drosophila (fruit flies) showed that the white eye allele exhibits sex-linked inheritance, specifically being located on the X chromosome. This was demonstrated by the pattern of white eye trait appearing more frequently in males, which aligns with X-linked recessive inheritance (males have one X chromosome, so they express the trait if the X carries the allele). The allele is not dominant, codominant, on an autosome, or the Y chromosome.

Answer:

located on the X chromosome.