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2 Jun 2019

Suppose that for a trait that is determined by a set of twoalleles, the observed frequency for homozygous dominant, homozygousrecessive, and heterozygous are 0.64, 0.26, and 0.1, respectivelyfor a certain population. Calculate the frequency of p, thedominant allele, and then perform a chi-squared test with analpha-value of 0.05 to test if the population is in Hardy-Weinbergequilibrium with a random sample of 1000 individuals.

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Patrina SchowalterLv2

3 Jun 2019

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Related questions

For the data set below, determine whether the genotypefrequencies represent a population in Hardy-WeinbergEquilibrium.(The significant digits allow you to assume you canhave an exactly representative sample of 1000 individuals. Thecritical value at probability 0.05 with (only) one degree offreedom is 3.84.) You will use a Chi-squared test and answer thequestions below.

Genotype: AA Aa aa

Frequency: 0.312 0.335 0.353

a. Let p = frequency of the "A" allele and q = the frequency ofthe "a" allele. Within a perfectly representative sample of 1000individuals, how many "A" alleles would there be?

b. Therefore, what is the value of p?

c. After finding the actual values of p and q, what are theexpected values of individuals with the genotypes AA, Aa andaa?

d. What is your Chi-squared value? e. Is this population inHardy-Weinberg equilibrium?

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	A.30% (0.30)
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Part A

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Part B

In a species of corn, individuals have either narrow or wide corn cobs. This trait is controlled by genes at a single locus, with the narrow cob allele dominant to the wide cob allele. A farmer counts 74 narrow cob and 113 wide cob plants in a field. Of the narrow cob plants, 28 are homozygous dominant. What are the frequencies of the dominant and recessive alleles observed in this sample?

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Part C

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Part D

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Part E

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