Pedigree notes copy - MUST pass the Y-linked trait to ALL...

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HUMAN PEDIGREE ANALYSIS If autosomal dominant: If autosomal recessive: If X-linked dominant: If X-linked recessive: If Y-linked: only males (squares) can be shaded ( ) because “XY*” (the gene for the trait occurs only on Y chr’some and females have no Y); also, fathers that are
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Unformatted text preview: MUST pass the Y-linked trait to ALL their sons & could be BB or Bb & must be bb & must be bb & could be BB or Bb must be X B Y could be X B X B or X B X b must be X b X b must be X b Y must be X b Y must be X b X b could be X B X B or X B X b must be X B Y...
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