Morgan's discovery of a white-eyed male was important because the mutant gene proved to be in:

Question

Quizplus · Accepted Answer

Morgan's discovery of a white-eyed male in Drosophila provided evidence that the gene for eye color is sex-linked, or located on the X chromosome. This was the first evidence of a gene being located on a sex chromosome, and this discovery helped establish the chromosomal theory of inheritance. The Y chromosome is much smaller and carries only a few genes that are essential for male development, so it is unlikely to carry genes for eye color. Autosomes are the non-sex chromosomes, and eye color is not typically linked to these chromosomes. Mitochondrial DNA is inherited solely from the mother and would not explain the sex linkage of eye color in this case.

Morgan's Discovery of a White-Eyed Male Was Important Because the Mutant