BIOL 4100 Lecture Notes - Jens Clausen, Wildflower, Heritability
7 Feb 2013
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Jens clausen, david keck, and william hiesey studied achillea, a perennial wildflower. Achillea grew from cuttings, making it possible to created clones of single individual. Researchers collected seven plants from wild population and took two cuttings from each: researcher grew one cutting from each plant in experimental garden in mather, california. The plants experienced virtually same environment, differences among them in height at maturation are entirely due to genetic variation: plants in standford population on average taller than plants in mather population. European americans is due to genetic differences between these groups. First, they assume there is linear relationship between environment and iq: second, murray and herrnstein"s argument from own incredulity amounts to rhetorical technique, not science. Scientific approach to their hypothesis would be to conduct common garden experiment: rear. European americans and african americans together in environment typically experienced by european. Americans, then compare iq scores and vice versa.
