according to the book the answer is that it is evolving. however I thought a pop

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according to the book the answer is that it is evolving. however I thought a population only evolves only if the equilibrium does not equal 1. when I work this problem out I get 1.

I round to get .52 for 'p' and use 1-.52 to get .48 for 'q'

formulas:
p^2+2pq+q^2=1

p+q=1

1. WHAT IF? > A locus that affects susceptibility to a degener- ative brain disease has two alleles, Vand v. In a population, 16 people have genotype VV, 92 have genotype Vv, and 12 have genotype vv. Is this population evolving? Explain. For suggested answers, see Appendix A.

Explanation / Answer

The total population is = 16+92+12 = 120

The frequency of VV or p2 = 16/120 = 0.133

The frequency of Vv or 2pq = 92/120 = 0.766

The frequency of vv is = 12/120 = 0.1

The frequency of p = p2 + ½ 2pq = 0.133 + ½* 0.766

P = 0.133 + 0.383 = 0.516

The frequency of q = q2 + ½ 2pq = 0.1 + ½* 0.766 = 0.483

So, the p+q = 0.516 + 0.483 = 0.999 (so, the population is evolving)

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