Turner syndrome: the case of the missing sex chromosome.
Turner syndrome is the phenotype associated with the absence of a second sex chromosome in humans. Recent observations support the hypothesis that the phenotype results from haploid dosage of genes that are common to the X and Y chromosomes and that escape X inactivation. A goal of current studies is the identification of these "Turner' genes.
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Howard Hughes Research Laboratories, Whitehead Institute, Cambridge, MA.
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D000818:Animals; D006801:Humans; D051379:Mice; D009006:Monosomy; D010641:Phenotype; D014424:Turner Syndrome / Q000235:genetics*; D014960:X Chromosome