1. Pedigree-family tree that shows the inheritance of a trait
Use shapes to represent affected and unaffected individuals.

2. What inheritance patterns can be shown on a pedigree?
Autosomal Dominant
Males and Females affected
Homozygous dominant (AA) or heterozygous individuals (Aa)
Autosomal Recessive
Homozygous recessive individuals (aa)
X Linked Recessive
Males and Females affected but only females can be carriers
Females must have two recessive alleles, males only need one (XrXr or XrY)

3. Types of inheritance *cheat sheet*
Y-linked: All males have the trait.
Autosomal Dominant: No carriers
X-linked recessive: No MALE carriers/only female carriers
Autosomal Recessive:
Try some…….

4. #1

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7. #4