Answer:
Only males in the fruit fly generation having white eyes.
Step-by-step explanation:
Thomas Hunt Morgan born on the 25th of September 1866 and a Nobel Laureate. He was an early geneticist, biologist and scientist studied fruit flies and discovered that specific genes were located on sex chromosomes.
The result that only males in the fruit fly generation have white eyes indicated to Morgan that eye-color trait is located on the X chromosome.
