X-Linked Traits and Disorders

X-Linked Traits and Disorders


This lesson will give examples of disorders that are linked to genes on the X chromosome.

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  • Sex Chromosome

    The chromosomes that, when paired, determine the sex/gender of the organism, in humans XX = female while XY = male.

  • Hemophilia

    An X-linked recessive disorder that affects the blood's ability to clot.

  • Duchenne Muscular Dystrophy

    An X-linked recessive disorder in which the muscles deteriorate over time.

  • Red-Green Color Blindness

    An X-linked recessive disorder in which a person cannot distinguish between the colors red and green.

  • Faulty Enamel Trait

    A disorder caused by a dominant mutant allele on the X chromosome in which enamel that protects teeth does not properly develop.