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Punnett Square Explanation and Genetic Answers

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3.Punnett square for eye color in fruit flies for a cross between a white-eyed female and a red-eyed male. Red eye color is dominant. The eye color gene is carried on the X chromosome. The simulation will show what ratio of their off-spring would be white-eyed and red-eyed, and what ratio of each of these would be male and female. Draw the square and explain the cross.

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Solution Summary

The solution draws the square and explains the cross.

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See the attached file.

Female, white eye: X-X-
Male, red eye: X+Y
(where - is recessive allele for white eye, and + stands for dominant red eye)
Female can only contribute X- because that's all she has. ...

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