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# Question

Hi, I already answered the Part A and part B of the following question as you can see. I am looking for an answer for the part C (  c. Is inbreeding a possible explanation for the observed distribution of genotypes? Why or why not? ). PLease help me just for part C . Thank you very much.

A sample of 500 field mice contains 225 individuals that are DD, 175 that are Dd, and 100 that are dd.

a. What are the frequencies of p and q in this sample?

P frequency= [ (225 × 2) + 175] /1000 = 0.625      q frequency = [ (100 ×2) + 175] /1000 = 0.375

b. Is the population in HW equilibrium? Use the Chi-square test to justify your answer.

X2=(225- 195 )2÷195 +( 100 -70)2÷70+( 175– 235 )2÷ 235 = 4.6 + 12.8 + 15.3 = 32.7

Therefore, according to this chi square this population is not in Hardy Weinberg equilibrium because the observed result is significantly different from expected values.

c. Is inbreeding a possible explanation for the observed distribution of genotypes? Why or why not?

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Classical Studies 3 Months Ago 2 Views