Inherited conditions in Humans

HideShow resource information
View mindmap
  • Inherited conditions in humans
    • There are many different genetic disorders . Some are caused by a dominant 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
      • Polydactyly where a baby is born with extra fingers or toes
        • Polydactyly can be passed on by one paretn who has the allele
    • If an allele is recessive the person must inherit two recessive alleles to have the disorder
    • Cystic fibrosis is caused by a recessive allele . The allele affects cell membranes and causes the production to thick sticky mucus
      • The mucus can affect several organs , including the lungs and pancreas


No comments have yet been made

Similar Biology resources:

See all Biology resources »See all DNA and inheritance resources »