In the rat, the pattern of coat color is affected by a gene with two alleles. PH is the allele for hooded, inwhich the animal is mostly white with color restricted to the shoulders and neck. P+ is the normal solidbody color allele. These two alleles exhibit incomplete dominance, so that heterozygotes have whitebellies only.A true-breeding solid strain is crossed with a true-breeding hooded strain, to produce an F₁ generationthat is all white belly. The F₁ generation rats are mated with each other to produce 800 F₂ offspring.Below is a table that gives the observed number of each phenotype in the F2 and also gives you theexpected number.Question: If you perform a Chi-square goodness of fit test, what is the value of Chi square X² (Expressyour answer to the hundredths.)solidwhite bellyhoodedΣObserved195420185800Expected200400200800

Chi-square Goodness of Fit is a statistical test that allows us to compare observed data with…

Answered: M Question: If you perform a Chi-square…

M Question: If you perform a Chi-square goodness of fit test, what is the value of Chi square X² (Express your answer to the hundredths.)

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter5: The Inheritance Of Complex Traits

Section: Chapter Questions

Problem 5QP: As it turned out, one of the tallest Potsdam Guards had an unquenchable attraction to short women....

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Question

In the rat, the pattern of coat color is affected by a gene with two alleles. PH is the allele for hooded, in
which the animal is mostly white with color restricted to the shoulders and neck. P+ is the normal solid
body color allele. These two alleles exhibit incomplete dominance, so that heterozygotes have white
bellies only.
A true-breeding solid strain is crossed with a true-breeding hooded strain, to produce an F₁ generation
that is all white belly. The F₁ generation rats are mated with each other to produce 800 F₂ offspring.
Below is a table that gives the observed number of each phenotype in the F2 and also gives you the
expected number.
Question: If you perform a Chi-square goodness of fit test, what is the value of Chi square X² (Express
your answer to the hundredths.)
solid
white belly
hooded
Σ
Observed
195
420
185
800
Expected
200
400
200
800

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