Today we started chapter 3, on pedigree analysis.
We discussed the reasons for which human Mendelian genetics has been traditionally studied with pedigrees rather than with more direct approaches, and what are the shortcomings of doing so.
We also listed the six modes of inheritance and described two of them: Autosomal dominant and autosomal recessive. We discussed examples of each: Cystic fibrosis and sickle cell anemia (autosomal recessive) and Marfan syndrome (autosomal dominant).
I also introduced the catalog that stores information on human Mendelian traits: Online Mendelian Inheritance In Man (OMIM). [OMIM in Wikipedia]
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