The flies with variegated eye color had what abnormal chromosome structure?
A)X-chromosome inversion that moves the w⁺ gene to a different orientation on the chromosome in some cells following x-ray exposure
B)X-chromosome translocation that moves the w⁺ gene to a region of heterochromatin on another chromosome in some cells following x-ray exposure
C)a mutation in the w⁺ gene following x-ray exposure that causes the gene to be overexpressed in a tissue-specific manner
D)X-chromosome deletion that deleted the w⁺ gene in some cells following x-ray exposure
E)a mutation in a somatic chromosome that causes the w⁺ gene to be translocated to the X-chromosomes following x-ray exposure

Question

Quizplus · Accepted Answer

The variegated eye color in flies is due to an X-chromosome inversion that changes the orientation of the w⁺ gene, leading to its differential expression in some cells.

The Flies with Variegated Eye Color Had What Abnormal Chromosome