BIOC15H3 Lecture Notes - Lecture 20: Quantitative Trait Locus, Animal Locomotion, Inbreeding
12 Dec 2013
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Bioc15fall2013 lecture 20: behaviour genetics and lecture 21. Drosophila locomotor activity: ecolosion rhythm emergence form pupa, measured locomotor activity to see if the absence of eclosion rhythm is due to the absence of the clock or just desynchronization. Locomotor activity rhythm movement between the flies: one sex comes out before the other and very shortly after light are on in the morning. Drosophila: normal rhythm: peaks occur around the same time each day, and about 12 hours apart. Mean locomotor activity flies were tested individually in the locomotor-activity meter. Qtl mapping in mice: qtl for circardian rhythm of locomotor activity in mice. Heritability of polygenic traits in humans can be studied using twins. Heritability is a population not an individual measure does not indicate how important genes are in influencing a character is population and environmental specific, it cannot be extrapolated from one population and set of environments to another.
