PSY 155 Lecture Notes - Hunter-Gatherer, Near-Sightedness, Heritability
Document Summary
Given a large population of people, to what extent can differences between these people be accounted for by differences in their genes? (questions the source of variation) Heritability statistic - is only about differences (about variance in a population) Heritability = vgenes / ( vgenes + venvironment - vg-e) Imagine if five pairs of identical twins are reared apart. The were originally born in a hunter gatherer group in botswana. Suppose we kidnap one of each of the kids and raise them in california. Some genotypes will autocorrect and cause near-sightedness in the californias, while other genotypes buffer against this. So even though they have the same genotype, their. Heritability of a trait always relative to a particular population and a particular environment. It tells you nothing about how easy or. Heritability (h) was different in botswana and ca even though they had identical sets of genotypes h of eyesight was high in ca.
