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13 You have a true breeding brown-eyed stock of flies and true breeding red-eyed

ID: 132619 • Letter: 1

Question

13 You have a true breeding brown-eyed stock of flies and true breeding red-eyed stock of flies. Brown eyed flies are crossed with red-eyed flies and the Fl generation are self crossed. In the F2 you have a 1 ratio of brown to red-eyed phenotypes for both males and female flies. For each statement below, circle the T preceding each statement that is true and the F preceding each statement that is false. More than one statement may be true/false. T F a. The mode of inheritance is most likely recessive - b. The mode of inheritance is most likely autosomal - c. The mode of inheritance includes two different genes for eye color d. The red eyed flies are recessive to the brown eyed flies

Explanation / Answer

A) The mode of inheritance is most likely recessive: F

B) The mode of inheritance is most likely autosomal: T

C) The mode of inheritance includes two different genes for eye color: T

D) The red eyed flies are recessive to the brown eyed flies: T

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