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In Angus cattle, Black hide (B) is dominant to Red hide (b). In a large randomly...

In Angus cattle, Black hide (B) is dominant to Red hide (b). In a large randomly mating herd of 500 cattle, 200 are black and 300 are red. What are the genotypic and gene frequencies in this population? Assume H-W.

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Answer #1

I believe the correct answer to be:

Genotypic frequency of bb = 300/500 = 0.6.
allele frequency of b = underroot of 0.6 = 0.775.

Since the population is in HWE, total sum of allelic frequency = 1.

So allele frequency of B = 1-0.775 = 0.225.
Genotypic frequency of BB= B2= 0.2252= 0.051.

And the frequency of Bb genotype = 2xBxb = 2x0.775x0.051= 0.078

feel free to leave a comment down below for any further query. good rating would be appreciated if you find my answer helpful. thank you.

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