Using the data on the segregation of eye-color from Dosophila culture (see table 1). Tabulate your F1  and F2 data on eye-color as associated with sex by making a table. Based on your observations, frame your hypothesis as to the expected segregation of eye-color associated with sex. Apply the Chi-squared test to determine the goodness of fit of your data per generation. Ho: Ha: Decision Criteria: If X2c < X2tab, accept Ho. Otherwise, fail to accept Ho and accept Ha. Fill-up the next table. Conclusion:

Biomedical Instrumentation Systems
1st Edition
ISBN:9781133478294
Author:Chatterjee
Publisher:Chatterjee
Chapter13: Artifacts And Noise In Medical Instrumentation
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Using the data on the segregation of eye-color from Dosophila culture (see table 1).

Tabulate your F and Fdata on eye-color as associated with sex by making a table.

Based on your observations, frame your hypothesis as to the expected segregation of eye-color associated with sex. Apply the Chi-squared test to determine the goodness of fit of your data per generation.

Ho:

Ha:

Decision Criteria: If X2c < X2tab, accept Ho. Otherwise, fail to accept Ho and accept Ha. Fill-up the next table.

Conclusion:

 

Decision Criteria: If X²c< X² tab, accept Ho. Otherwise, fail to accept Ho and accept Ha.
Phenotypic Class
Expected
frequency (E)
Observed
frequency (0)
Deviation
(d = O - E)
d²
x²
> (0, - E)²
E
X² tab, a = 0.05, df = n-1 =
d²
E
Transcribed Image Text:Decision Criteria: If X²c< X² tab, accept Ho. Otherwise, fail to accept Ho and accept Ha. Phenotypic Class Expected frequency (E) Observed frequency (0) Deviation (d = O - E) d² x² > (0, - E)² E X² tab, a = 0.05, df = n-1 = d² E
Table 1. Cross between a female, red-eyed fly (P₁) and a male, white-eyed fly (P₂)
Generation
F₁
F₂
Phenotype
Red-eyed
Red-eyed
Red-eyed
Red-eyed
White-eyed
Sex
Female
Male
Female
Male
Male
Observed frequency
135
128
195
97
95
Transcribed Image Text:Table 1. Cross between a female, red-eyed fly (P₁) and a male, white-eyed fly (P₂) Generation F₁ F₂ Phenotype Red-eyed Red-eyed Red-eyed Red-eyed White-eyed Sex Female Male Female Male Male Observed frequency 135 128 195 97 95
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Interpret the result of your Chi-squared test.                                                                                       How many gene pairs were responsible for eye color in flies as associated with sex?                             What gene interaction was present in the gene/s for eye color?                                                               What is the genotype of the possible P1 & P2 that produced this F2 population?                          (Remember to indicate your gene notation).

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