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vagabundo [1.1K]
3 years ago
15

In guinea pigs hair straightness or curliness is thought to be governed by a single pair of alleles showing incomplete dominance

. Individuals with straight hair are homozygous for the S allele, those with curly hair are homozygous for the C allele, and individuals with wavy hair are heterozygous (SC). You collect data on 1,000 individuals from a population and discover that 244 have straight hair, 444 have curly hair, and 312 have wavy hair.a) Calculate the allele frequencies of the S and C alleles.b.) Is this population in Hardy-Weinberg equilibrium? Show work to support your answer.
Biology
1 answer:
Nimfa-mama [501]3 years ago
4 0

Answer:

Frequency of allele S is p = 0.4939

Frequency of allele C is q = 0.666

The population is not in Hardy-Weinberg equilibrium

Explanation:

Given -

Number of individuals with straight hair = 244

Number of individuals with curly hair = 444

Number of individuals with Wavy hair = 312

Let "p" represents the frequency for allele for straight hair and "q" represents the frequency for allele for curly hair

p^2 represents the frequency of genotype "SS"

p^{2} = \frac{244}{1000} \\= 0.244

q^2 represents the frequency of genotype "CC"

p^{2} = \frac{444}{1000} \\= 0.444

2pq represents the frequency of genotype "SC"

2pq = \frac{312}{1000} \\= 0.312

Frequency of allele S is p

= \sqrt{0.244} \\= 0.4939

Frequency of allele C is q

tex]= \sqrt{0.444} \\= 0.666[/tex]

For being in Hardy Weinberg's equation-

p+q=1\\

Substituting the values in above equation, we get -

0.4939+0.666\neq 1

hence, the population is not in Hardy-Weinberg equilibrium

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