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Autosomal Recessive
- Can skip generations (affected indv can have unaffected parents)
- Number of affected males is roughly equal to females
- Unaffected Genotype: AA, Aa
- Affected Genotype: aa
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Autosomal dominant
- Does not skip generations (affected indv must have an affected parent)
- Number of affected males is roughly equal to females
- An affected parent passes trait to either all or half of offspring
- Unaffected Genotype: aa
- Affected Genotype: AA, Aa
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Mitochondrial
- Maternal inheritance
- Affected female has all affected children (Unaffected female cannot have affected children)
- Affected male cannot pass the trait onto his children
- Unaffected Genotype: a
- Affected Genotype: A
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Y-linked
- Affects males only
- Affected father has all affected son (Unaffected father cannot have an affected son)
- Unaffected Genotype: XYa
- Affected Genotype: XYA
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X-linked recessive
- Can skip generations (affected individuals can have unaffected parents)
- Tend to affect males more than females (only 1 X)
- Unaffected female can have affected sons
- Affected female has all affected sons, but can have both affected and unaffected daughters
- Unaffected Genotype: XAXA, XAXa, XAY
- Affected Genotype: XaXa, XaY
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X-linked dominant
- Hardest to identify
- Does not skip generations (affected individuals must have affected parent)
- Unaffected Genotype: XaXa, XaY
- Affected Genotype: XAXA, XAXa, XAY
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