When Thomas Hunt Morgan Crossed Red-Eyed F1 Generation Flies to Each

question 39

Multiple Choice

When Thomas Hunt Morgan crossed red-eyed F1 generation flies to each other, the F2 generation included both red- and white-eyed flies, but all the white-eyed flies were male. Which of these best explains Morgan's result?

• A) The gene involved is located on the Y chromosome.
• B) The gene involved is located on the X chromosome.
• C) The gene involved is located on an autosome, but only in males.
• D) Other male-specific factors influence eye color in flies.

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