In a given population, only the A & B alleles are present of the ABO blood type

Question

In a given population, only the A & B alleles are present of the ABO blood type proteins. Complete the G Table and Chi Square Analysis.

Use the following information to answer the questions below: In a given population, only the "A" and "B" alleles are present of the ABO blood type proteins. There are no individuals with type "O blood or with O alleles in this particular population. 200 people have type A blood, 75 have type AB blood, and 25 have type B blood. Ldkadlsts doone unaaree o +otai: 300 1. calculate observed genotypic frequencies 200%0000 2. calculate allele frequencies q2 3. Use your calculations above to complete the G-table Genotypic ! # Expected"! OE | IntOE] |0.110 EJ frequency 04489300) PP 200 0.4489 - 134.1 131 By 11.48s (o. 1072)(30o) 2. 2.332 0.847 03.53 (o.0441)(300) Total Multiply expected genotype freq by total to get # Expected 4. Do a chi square analysis. Do you accept or reject the null hypothesis? Does this mean you have evidence for HWE or not? Degees of Freedom 841

Explanation / Answer

Answer:

Based on the given data:

Observed frequencies: AA =200, AB = 75, BB = 25

Degree of freedom = number of categories - 1 = 3 - 1 = 2

Probability P-value corresponding to Chi square value of 17.921 with 2 degree of freedom is

P-Value = 0.000128.

Since P-value is less than the significance level at 0.05, therefore, Null Hypothesis is rejected. Based on the evidence, the observed frequency are not in HW equilibrium.

Observed Frequency (O) Expected Frequency (E) (O-E) (O-E)^2/E AA 200 =0.627*300 = 188.1 11.9 0.753 BB 25 =0.043*300 = 12.9 12.1 11.350 AB 75 =0.33*300 = 99 -24 5.818 Total 300 300 Chi square (sum) 17.921

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.