'Natural selection continent' presentation slideshows

Is the CFTR allele maintained by mutation/selection balance?

Is the CFTR allele maintained by mutation/selection balance?. In some populations: Freq of Cystic Fibrosis: 2% Under mutation/selection balance, need: m = 4 x 10 -4 However the actual rate is 6.7 x 10 -7 too low!. Cultured mouse cells with CFTR genotypes . The fitness cost

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