Pedigree Worksheet Interpreting A Human Pedigree. In a pedigree a square represents a male. In a pedigree a square represents a male.
Since there is only one x in his genotype xy a male who carries a particular recessive allele on the x chromosome will have the sex linked condition. Interpreting a human pedigree. If it is darkened he has hemophilia.
How many males are there.
How many males are there. How many males have hemophilia. How many males are there. The shorter y chromosome does not carry an allele for a sex linked trait.