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In corn, kernel color is governed by a dominant allele for white color (W) and by a recessive allele (w) for yellow color. A random sample of 100 kernels from a population reveals that 9 kernels are yellow (ww) and 91 kernels are white. Calculate the genotypic and allelic frequencies for this population.

Respuesta :

10n31y

ww Frequency

[tex]q^{2} = 0.09\\\\ [/tex]

w Frequency

[tex]\sqrt{q^{2}} =\sqrt{0.09} \\\\ q=0.3\\ \\ [/tex]

W Frequency

[tex]p+q=1\\ p=1-q\\ p=0.7[/tex]

WW Frequency

[tex]p=0.7\\ p^{2} =0.7^{2} \\ p^{2} =0.49[/tex]

Ww Frequency

[tex]2pq= ?\\ 2pq=2(0.7)(0.3)\\ 2pq=0.42[/tex]

Proofs:

[tex]p+q=1\\ 0.7+0.3=1[/tex]

[tex]p^{2}+2pq+q^{2}=1\\ (0.7)^{2}+2(0.7)(0.3)+(0.3)^{2}=1\\ 0.49+0.42+0.09=1[/tex]

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