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Tag: Muscular Dystrophy

The Genetic Blueprint of Disease: Part 3 — Duchenne Muscular Dystrophy and Sex-Linked Inheritance

Last week we saw how the complex interplay of genetics and environment has impacted the inheritance of sickle-cell anemia. This week, I want to talk about a special subset of inherited diseases called sex-linked disorders. One of the most common sex-linked disorders is Duchenne muscular dystrophy (DMD), a debilitating muscular disorder linked to the X-chromosome. Sex-linked disorders, like DMD, come from genes in the sex chromosomes (X and Y in humans). Sex chromosomes are responsible for determining an individual’s biological sex, XX for female, XY for male (although there are other less common combinations that come from chromosomal aberrations—we’ll talk…

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