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Genetics pedigree templates

Biology — Pedigree: Marfan syndrome (AD)

Autosomal dominant connective-tissue disorder.

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Marfan syndrome (autosomal dominant)I1I2II1II2II3Unaffected maleUnaffected femaleAffectedCarrierConsistent with 3 modes — autosomal dominant, autosomal recessive, X-linked dominant.Consistent with 3 modes: autosomal dominant, autosomal recessive, X-linked dominant. The other 3 mode…X-linked recessive is ruled out: II3 is affected and her father I2 is not. A daughter's two X chromos…Mitochondrial is ruled out: I1 is affected and her child II2 is not. Every child of an affected mothe…Y-linked is ruled out: II1 is affected and his father I2 is not, and a son's Y chromosome comes from …

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title "Marfan syndrome (autosomal dominant)"
individual I1 sex female affected yes gen 1
individual I2 sex male affected no gen 1
mating I1 I2
individual II1 sex male affected yes gen 2 parents I1 I2
individual II2 sex female affected no gen 2 parents I1 I2
individual II3 sex female affected yes gen 2 parents I1 I2