Today we discussed one of the most important concepts in quantitative genetics.
We defined heritability and talked about some of its implications. We discussed the use of twin studies as tools the estimate heritability of different traits, and the importance of using both, monozygotic (MZ) and dizygotic (DZ) twin studies.
We discussed a few examples of multifactorial traits in humans: Skin color, IQ, and obesity.
Then we started discussing the chapter on cytogenetics, a field that focuses on studying chromosomes, using karyotypes as the main tool.
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