X-linked ocular albinism: a family containing a manifesting heterozygote, and an affected male married to a female with autosomal recessive ocular albinism.
A pedigree of X-linked ocular albinism is presented containing nine affected males and 10 heterozygous females. One carrier female showed ocular changes similar to those of affected males. She is considered to be a manifesting heterozygote, a situation explained by the Lyon hypothesis. One affected male married a female with autosomal recessive ocular albinism and produced one daughter with the fundus changes of the carrier state of X-linked ocular albinism, and one son with normal eyes. The daughter did not show any evidence of the additive effect of the two different genes for X-linked and autosomal recessive ocular albinism.
D000417:Albinism / Q000235:genetics*; D005260:Female; D005796:Genes; D005808:Genes, Recessive; D006580:Genetic Carrier Screening; D008040:Genetic Linkage; D006801:Humans; D008297:Male; D010375:Pedigree; D014960:X Chromosome