You are conducting an experiment studying sex linked traits. I. The experiment you cross 2 different fruit Flys. The female fruit fly has red eyes and the male fruit fly has white eyes. In the first generation, both male and female Flys both have red eyes. After crossbreeding the offspring, you acquire the data given in the chart for the f2 generation. What would be the expected phenotypic ratio for a male sex linked trait in an f2 generation? Give a chi square analysis to determine if your previous answer is correct.

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
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You are conducting an experiment studying sex linked traits. I. The experiment you cross 2 different fruit Flys. The female fruit fly has red eyes and the male fruit fly has white eyes. In the first generation, both male and female Flys both have red eyes. After crossbreeding the offspring, you acquire the data given in the chart for the f2 generation. What would be the expected phenotypic ratio for a male sex linked trait in an f2 generation? Give a chi square analysis to determine if your previous answer is correct.

notype
FM, red
Male,
eyes
male, white eyes
red
total
eyes
observed
507
258
255
1020
Proportion
4971
+2529
@
2500
1.000
Transcribed Image Text:notype FM, red Male, eyes male, white eyes red total eyes observed 507 258 255 1020 Proportion 4971 +2529 @ 2500 1.000
Expert Solution
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The alleles are the alternative forms of a gene that are located on the same locus of a homologous chromosome with contrasting characteristics.

The sex linked traits are located on the X-chromosome. The female drosophila is XX while the male drosophila is XY (actually the males are XO, they contain only one X-chromosome and Y chromosome is absent).

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