Fruit flies express both normal wing shape and vestigial wing shape. The pedigree shows the inheritance of the wing-shape trait over two generations. In the pedigree, squares represent males and circles represent females. Shaded symbols represent an individual with normal wing shape. A cross between individual 4 and individual 5 in the pedigree resulted in the data shown in the table. This data results in a chi-square value of 6.45. Female Male Normal 25 39 Vestigial 22 14 Degrees of Freedom p 1 2 0.05 3.84 5.99 0.01 6.64 9.32 Based on the data, which of the following best supports the claim that this trait exhibits an autosomal dominant inheritance pattern? The results of the cross show that there were no heterozygous dominant females. The chi-square value shows that these results are not typical of this type of cross. The results of the cross show that fewer males exhibited the recessive trait than females. The chi-square value shows that these results are typical of this type of cross. The results of the cross show that approximately ¾ of the offspring exhibited the dominant phenotype, while approximately ¼ of the offspring exhibited the recessive phenotype. The chi-square value shows that these results are typical of this type of cross. The results of the cross show that approximately ½ of the offspring exhibited the dominant phenotype, while approximately ½ of the offspring exhibited the recessive phenotype. The chi-square value shows that these results are not typical of this type of cross.

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Description: Fruit flies express both normal wing shape and vestigial wing shape. The pedigree shows the inheritance of the wing-shape trait over two generations. In the pedigree, squares represent males and circles represent females. Shaded symbols represent an

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter11: Genome Alterations: Mutation And Epigenetics

Section: Chapter Questions

Problem 16QP: Familial retinoblastoma, a rare autosomal dominant defect, arose in a large family that had no prior...

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Fruit flies express both normal wing shape and vestigial wing shape. The pedigree shows the inheritance of the wing-shape trait over two generations. In the pedigree, squares represent males and circles represent females. Shaded symbols represent an individual with normal wing shape.

A cross between individual 4 and individual 5 in the pedigree resulted in the data shown in the table. This data results in a chi-square value of 6.45.

	Female	Male
Normal	25	39
Vestigial	22	14

Degrees of Freedom
p	1	2
0.05	3.84	5.99
0.01	6.64	9.32

Based on the data, which of the following best supports the claim that this trait exhibits an autosomal dominant inheritance pattern?

The results of the cross show that there were no heterozygous dominant females. The chi-square value shows that these results are not typical of this type of cross.

The results of the cross show that fewer males exhibited the recessive trait than females. The chi-square value shows that these results are typical of this type of cross.

The results of the cross show that approximately ¾ of the offspring exhibited the dominant phenotype, while approximately ¼ of the offspring exhibited the recessive phenotype. The chi-square value shows that these results are typical of this type of cross.

The results of the cross show that approximately ½ of the offspring exhibited the dominant phenotype, while approximately ½ of the offspring exhibited the recessive phenotype. The chi-square value shows that these results are not typical of this type of cross.

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