A parental cross between homozygous wild-type red eyed females (X+ X+) were crossed with white eyed males (XwY). The F1 generation consisted of phenotypic X+Xw females and X+Y males. The F2 generation was produced by crossing the F1 generation and consisted of a ratio of 2 red eyed females (X+ X+ and X+ Xw) : 1 red eyed male (X+Y) : 1 white eyed male (XwY). Attached is a picture of a chi square analysis based on the results from the F2 generation. Please discus what conclusions can be made based on the data/findings. What inheritance pattern is this?

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A parental cross between homozygous wild-type red eyed females (X+ X+) were crossed with white eyed males (XwY). The F1 generation consisted of phenotypic X+Xw females and X+Y males. The F2 generation was produced by crossing the F1 generation and consisted of a ratio of 2 red eyed females (X+ X+ and X+ Xw) : 1 red eyed male (X+Y) : 1 white eyed male (XwY).

Attached is a picture of a chi square analysis based on the results from the F2 generation. Please discus what conclusions can be made based on the data/findings. What inheritance pattern is this?

Phenotypes Fraction
Expected
2/4
Wild
Female
Wild Male
White
Female
White
Male
Total
1/4
1/4
1
Observed Expected
(0)
(E)
416
400
192
0
192
800
200
200
800
Deviation
(D)
16
-8
-8
0
D²
256
64
64
D²/E
0.64
0.32
0.32
X² = 1.28
Transcribed Image Text:Phenotypes Fraction Expected 2/4 Wild Female Wild Male White Female White Male Total 1/4 1/4 1 Observed Expected (0) (E) 416 400 192 0 192 800 200 200 800 Deviation (D) 16 -8 -8 0 D² 256 64 64 D²/E 0.64 0.32 0.32 X² = 1.28
Expert Solution
Step 1: Introduce about the chi-square test

Chi-square (X2) analysis helps us to compare the observed data of an experiment to the expected data. It helps in the acceptance or rejection of a hypothesis based on the comparison of the result and the critical value. This test is performed to analyze the Mendelian inheritance in genetics.

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