A) You cross a heterozygous red-eyed female with a white-eyed male, and they pro

Question

A) You cross a heterozygous red-eyed female with a white-eyed male, and they produce 180 offspring. What are the expected numbers of offspring of each phenotype assuming the eye color gene is in the C chromosome? (Red eyes are dominant to white eyes)
B) when you analyze the number of offspring of each phenotype, you come up with a chi-squared value of 5.54. What does this tell you about your hypothesis. A) You cross a heterozygous red-eyed female with a white-eyed male, and they produce 180 offspring. What are the expected numbers of offspring of each phenotype assuming the eye color gene is in the C chromosome? (Red eyes are dominant to white eyes)
B) when you analyze the number of offspring of each phenotype, you come up with a chi-squared value of 5.54. What does this tell you about your hypothesis.
B) when you analyze the number of offspring of each phenotype, you come up with a chi-squared value of 5.54. What does this tell you about your hypothesis. B) when you analyze the number of offspring of each phenotype, you come up with a chi-squared value of 5.54. What does this tell you about your hypothesis.

Explanation / Answer

Answer:

A) Red eye is dominant over white

Rr (Heterozygous red eye) x rr (white) =   Rr, Rr, rr, rr (offsprings)

total offsprings are 180

The expected number of offsprings :

Rr= 50% Red eye = 90 offsprings

rr= 50% white eye= 90 offsprings

B)

The possible out comes are two (red or white), so degree of freedom is 1. Now compare the chi-squared value of 5.54 in table.

from the atble: 1 degree of freedom the value should be 3.84 to get siginficant (p = 0.05 )chi-square statistic value.

The given value in problem is 5,54, so, it is statistically insignificant(not significant)

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