Thinking about heritability
Heritability:
The heritability of a trait within a population is the proportion of observable differences in a trait between individuals within a population that is due to genetic differences. Factors including genetics, environment and random chance c…
More on the “missing heritability” and epistasis
Please see Luke Jostins’ posts at Genetic Inference and Genomes Unzipped.
Update: Steve Hsu weighs in. He read the supplements! Mad props.
“Missing heritability” – interaction edition
The Pith: A great deal of important medical genetic differences between people may be due to the nature of interactions of genetic variants. If you’ve been reading this blog for a while you know that there is a question in genomics right now as to “missing heritability.” The issue is basically that there are traits […]
Pygmies are short because nature made them so
Aka Pygmies
The Pith: There has been a long running argument whether Pygmies in Africa are short due to “nurture” or “nature.” It turns out that non-Pygmies with more Pygmy ancestry are shorter and Pygmies with more non-Pygmy …
Heritability and genes as causes
Since the beginning of this weblog (I’ve been writing for eight years) heritability has been a major confusion. Even long time readers misunderstand what I’m trying to get at when I talk about heritability. That’s why posts such as Mr. Luke Jostins‘ are so helpful. I had seen references to a piece online, The Causes of […]