HSCI 1160 Lecture Notes - Lecture 1: Human Ecology, Genetic Drift, Menopause

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Some of that variation is linked to genetic differences. Some of that variation is linked to differences in survival and. Original pop of pac-dots -> variation in survivorship. Heritabilities vary from 0 to 1, w 0 representing resemblance btw 2 individuals chosen of random (h) = vg/ vp (variation in genotypes/ phenotype) Ex: height: 0. 75, age of menopause: 0. 36, age of 1 birth:0. 11. Ns favors reproductive success not comfort or happiness. Some genes (portions) of genetic material) maybe associated w both costs and benefits. We compete w pathogens which have shorter life spans. The environment in which we live is dynamic. In both cases, the we face constant environmental changes: quick and slow, big and small, ephemeral and long lasting, expected and unexpected, cyclical and unique. We need to constantly respond to these changes . Are human equally exposed to all changes and challenges: not necessarily prenatal exposures, postnatal exposures.

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