How is the chi-square test used to analyze genetic crosses? What does the probability (p-value) associated...
How is the chi-square test used to analyze genetic crosses? What does the probability (p-value) associated with a chi-square value indicate about the result of a cross?
Homework Answers
In chi square , we are provided with observed phenotypic or genotypic ratio , then we calculate the expected ration according to mendelian inheritance or ratio valid for that study then chi square value is calculated using formula =£ (O-E)2/E .
£ = sum of all the values .
O = observed value , E = expected value
Then this chi square value is compared with the chi square value in the table at a particular degree of freedom.
P- value indicates the significance level of the result of that cross.
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How is the chi-square test used to analyze genetic crosses? What
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genetics what is the distance between these genes? also set up a chi square test to...
genetics
what is the distance between these genes? also set up a chi
square test to examine data. show chi square value and p value.
please show work.
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What does it mean if the Chi-square test statistic has a value of zero? There is an error in the calculations as the test statistic must be positive. We will reject the null hypothesis. The test is right-tailed so that the result is inconclusive. All of the observed values equal the expected values for the corresponding cell.
genetics
what is the distance between these genes? also set up a chi
square test to examine data. show chi square value and p value.
please show work.
In rabbits, there are many genes that control coat appearance. The EN gene controls whether the rabbits are solid or spotted. The C gene controls whether rabbits tend to be brown or grey. The alleles of these genes follow a simple dominant/recessive pattern. The following test-cross/mapping-cross was set up: spotted and brown...
How do you answer if your data support the expected
ratio?
Use a chi-square analysis to test the expected ratio for the F2 of Cross C. Phenotype Observed Expected Expected (O-E) (O-E) (O-E) IE Number Fraction Number Yellow 10082 10248.0625 - 1610.0625 2516,75391 2.69 13/16 Purple 2531 3/16 2364.9375 166.0625 27576.7539111966 Total = Chi-square 14.35 Number of degrees of freedom= 2-1 = 1 Probability of a match= p<0.05 On the basis of your chi-square test, does your data support the...
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