Sorry, not much interesting to report today. We were going over more respiration (which I've written oodles about over the last week) and the math behind genetics (which is no fun to write about). Tomorrow seems promising though!
TIL: Hemochromatosis is an autosomal recessive genetic disease caused by high levels of iron in the blood. It is one of the few diseases that can actually be treated effectively with leeches.
Autosomal dominant diseases typically are only expressed by heterozygotes (individuals with only one of the two copies of the disease gene are mutated) because the homozygous diseased genotype is almost always fatal. An example of this is achondroplastic dwarfism, the most common form of dwarfism. An exception to this rule is Huntington disease, which presents with the same disease phenotype for both heterozygotes and homozygotes.
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