- There are many different genetic disorders. Some are caused by a dominat allele, some by a recessive allele.
- If the allele is dominant the person only has to inherit one dominant allele to have the genetic disorder, e.g. polydactyly where a baby is born with extra fingers or toes.
- Polydactly can be passed on by one parent who has the allele.
- If an allele is recessive the person must inherit…
Similar Biology resources: