Article
Notes on the population genetics of fragile X syndrome.
American journal of medical genetics - 1 Jan 2000
Vianna-Morgante A M, Otto P A
Abstract excerpt
Our analysis of fragile X-inactivation in normal and mentally retarded heterozygotes led us to conclude that a fraction of female carriers of the imprinted (fully mutated) allele is phenotypically normal as a consequence of X-inactivation. Taking this into account, we derived equilibrium equations for the fragile X [fra(X)] genotype frequencies. We also showed that small variations in the value of s (selection...
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