Sex-linked diseases & pedigree

• Males are more affected by X-linked recessive traits, while females are often carriers
• All children will be affected if both parents have x-linked chromosomes
• It is more common for recessive to skip generation
• Pedigree


  Is a chart that shows the inheritance of a trait over several generations
• Sex linked = x-linked

  • use XY and letters
• Autosomal = not sex-linked

  • just letters