Population Genetics / Hardy-Weinberg Problems

Directions: Work out the following problems on a separate piece of paper. Show ALL work and circle your answers.

1) If the frequency of a recessive allele is 30% in a population of 100 people, how many would you predict would be carriers of this allele, but would not express the recessive phenotype? q= 0.30 p= 0.70

Carriers = 2pq = 2(.3)(.7) = .42

#= (.42)(100) = 42 individuals

2) From a sample of 278 American Indians, the following MN blood types were obtained: MM = 78, MN = 139, NN = 61. Calculate the allele frequency of M and N.

M= 0.53

N= 0.47

MM = 78/278 = 0.281 = p2 p = 0.530 = 53%

MN = 139/278 = 0.50 = 2pq q = 0.468 = 46.8%

NN = 61/139 = 0.219 = q2

3)
*…show more content…*

Complete the following chart based on this information.

The frequency of the (H) allele =

0.7

The total number of homozygous nonallergic Pago Fuagens =

2450

(5000 x 0.49)

The frequency of the (h) allele =

0.3

The total number of Pago Fuagans that are carriers of the (g) allele and phenotypically normal =

2100

(5000 x 0.42)

The total number of (h) alleles on Pago Fuago =

3000

(10,000 x 0.3)

The total number of Pago Fuagens that suffer from this

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