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Sex – linked inheritance

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Sex – linked inheritance

  1. 1. Sex – Linked Inheritance
  2. 2. Sex-Linked Disorders• Involve the sex chromosomes• Recessive gene on the X chromosome is more likely to be expressed in males• ***Y chromosome has no 2nd allele that might counteract the gene on the X chromosome!
  3. 3. Sex-Linked Disorders Gene Mutations1- Color Blindness• X-linked recessive disorder• Gene mutation on X chromosome• 1 of 10 males2- Hemophilia• X-linked recessive disorder• Gene mutation on X chromosome.• 1 of 5,000 males• Interfere with normal blood clotting

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