MENDEL// published his work in an obscure journal --> significance of work not realised // Austrain monk not scientist // he couldn't explain his findings
Inherited (genetic) diseases are caused by faulty genetic material that is passed onto future generations.
Carriers are individuals with a copy of the faulty allele that codes for an inherited disease, but do not have the disease themselves.
Cystic fibrosis (CF) is caused by a single recessive allele. Homozygous individuals--> CF.
Huntington's disease is caused by a single dominant allele. Heterozygous individuals-->Huntington's.
Polydactyle is caused by a single dominant allele. Heterozygous individuals--> Polydactyle.
Hemophilia is a sex related disease.
When a woman is heterozygous for the allele she will be an unaffected 'carrier'.
A man who has the 'h' allele on his single X chromosome will have the disease.
A woman who was homozygous for the 'h' allele would have the disease, but they never develop.
Embryos can be screened for the alleles that cause these. Cannot cure these --> Gene therapy.
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