autosomal inhertiance

• • A chart used to trace the inheritance of a particular trait through several generations of a family
  • Square: male Circle: female
  • Unshaded shapes don't display traits being studied. Shaded display trait being studied. Half shaded: female heterozygous carrier for x-linked recessive trait
• • Dominant: 
  • both males and females can be affected
  • All affected individuals have at least one affected parent
  • Trait is observed in each generation
• • Recessive
  • Both males and females can be affected
  • Affect individual can have 2 unaffected parents
  • Trait may not appear in one gen, but reappear in later generations