The flower color of a certain species of snapdragon isdetermined by one gene wit

Question

The flower color of a certain species of snapdragon isdetermined by one gene with two alleles, R (red) and r (yellow). Ina population of 200 snapdragons, you see the followingphenotypes; RR red flowers 72 Rr orange flowers 96 rr yellow flowers 32 a) Calculate the allele frequencies of R and r. b) Assume this population is in hardy- weinberg equilibrium.what will be the allele frequencies of R and r in the nextgeneration? The flower color of a certain species of snapdragon isdetermined by one gene with two alleles, R (red) and r (yellow). Ina population of 200 snapdragons, you see the followingphenotypes; RR red flowers 72 Rr orange flowers 96 rr yellow flowers 32 a) Calculate the allele frequencies of R and r. b) Assume this population is in hardy- weinberg equilibrium.what will be the allele frequencies of R and r in the nextgeneration?

Explanation / Answer

a) The frequency of R is 2 times red individuals plus the number oforange individuals, divided by two times total individuals. The frequency of r is 2 times yellow recessive individuals plus theorange individuals, divided by two times total individuals. R = (2*RR + Rr) / 2*population R = (2*72 + 96) / 2*200 R = 240 / 400 R = 0.60 r = (2*rr + Rr) / 2*population r = (2*32 + 96) / 2*200 r = 160 / 400 r = 0.40 b) The Hardy Weinberg Equation assumes that allele frequencies willremain the same between generations. So: R = 0.60 r = 0.40

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