You have isolated a true-breeding fish strain that has blue scales. Then you isolate another true- breeding fish strain that that has orange scales. You know that each of the colors are caused by recessive alleles in 2 different genes. You cross a blue fish to an orange fish and find out that all of the offspring have orange looking scales. You cross the F₁ progeny with each other and find 37 fish blue scales, 27 fish have green scales, and 98 fish have orange scales. a. You suspect that the inheritance pattern is due to recessive epistasis. Draw the order of the phenotypes controlled by this biochemical pathway that would be consistent with your hypothesis. b. Carry out a statistical analysis to determine if the ratio of orange to green to blue scaled fish in the F2 generation is consistent to recessive epistasis inheritance pattern. Phenotypes Observed F2 Conclusion: Hypothesized Phenotypic ratio Expected numbers Total: Degrees of freedom : Chi-square
You have isolated a true-breeding fish strain that has blue scales. Then you isolate another true- breeding fish strain that that has orange scales. You know that each of the colors are caused by recessive alleles in 2 different genes. You cross a blue fish to an orange fish and find out that all of the offspring have orange looking scales. You cross the F₁ progeny with each other and find 37 fish blue scales, 27 fish have green scales, and 98 fish have orange scales. a. You suspect that the inheritance pattern is due to recessive epistasis. Draw the order of the phenotypes controlled by this biochemical pathway that would be consistent with your hypothesis. b. Carry out a statistical analysis to determine if the ratio of orange to green to blue scaled fish in the F2 generation is consistent to recessive epistasis inheritance pattern. Phenotypes Observed F2 Conclusion: Hypothesized Phenotypic ratio Expected numbers Total: Degrees of freedom : Chi-square
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Transcribed Image Text:You have isolated a true-breeding fish strain that has blue scales. Then you isolate another true-
breeding fish strain that that has orange scales. You know that each of the colors are caused by
recessive alleles in 2 different genes.
You cross a blue fish to an orange fish and find out that all of the offspring have orange looking
scales. You cross the Fi progeny with each other and find 37 fish blue scales, 27 fish have green
scales, and 98 fish have orange scales.
You suspect that the inheritance pattern is due to recessive epistasis. Draw the order of the
phenotypes controlled by this biochemical pathway that would be consistent with your
һурothesis.
а.
b. Carry out a statistical analysis to determine if the ratio of orange to green to blue scaled
fish in the F2 generation is consistent to recessive epistasis inheritance pattern.
Phenotypes
Observed F2
Chi-square
Нуpothesized
Phenotypic ratio
Expected
numbers
Total :
Degrees of
freedom :
Conclusion :
Transcribed Image Text:Table 1: Probability table of chi-square values
Probabilities
df
0.99
0.95
0.90
0.70
0.50
0.30
0.20
0.10
0.05
0.01
0.001
1
0.0001
0.004
0.016
0.15
0.46
1.07
1.64
2.71
3.84
6.64
10.83
2
0.02
0.10
0.21
0.71
1.39
2.41
3.22
4.61
5.99
9.21
13.82
3
0.12
0.35
0.58
1.42
2.37
3.67
4.64
6.25
7.82
11.35
16.27
4
0.30
0.71
1.06
2.20
3.36
4.88
5.99
7.78
9.49
13.28
18.47
5
0.55
1.15
1.61
3.00
4.35
6.06
7.29
9.24
11.07
15.09
20.52
0.87
1.64
2.20
3.83
5.35
7.23
8.56 10.65
12.59
16.81
22.46
7
1.24
2.17
2.83
4.67
6.35
8.38
9.80
12.02
14.07
18.48
24.32
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