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→Classification of congenital disorders:
• An affected person can inherit the condition from an affected parent.
• An affected person can inherit the condition from an affected parent.
• the condition may result from a new mutation in the gene (e, without any family history) || Huntington disease, Marfan syndrome
• the condition may result from a new mutation in the gene (e, without any family history)
|| Huntington disease, Marfan syndrome
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|Autosomal recessive || • Both copies of the gene in each cell should have mutations.
|Autosomal recessive || • Both copies of the gene in each cell should have mutations.
• Typically not seen in every generation of an affected family. || cystic fibrosis, sickle cell disease
• Typically not seen in every generation of an affected family.
|| cystic fibrosis, sickle cell disease
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|Codominant || • Two different versions (alleles) of a gene are expressed.
|Codominant || • Two different versions (alleles) of a gene are expressed.