Pedigree Tree basics iGCSE biology

A trait where 2 parents are affected but children are not is…

if a trait is recessive an affected person has the genotype…

Males are what shape on a pedigree tree?

if a trait is dominant an affected person’s genotype could be

With recessive traits 2 affected parents can have unaffected children

Females are circles on a pedigree tree

Affected individuals are