PSYC 220 Lecture Notes - Lecture 2: Sickle-Cell Disease, Cystic Fibrosis, Hair
13 Aug 2016
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23 pairs (half from mom, half from dad) 22 pairs (autosomes meaning, not a sex chromosome) 1 pair (sex chromosome): usually female: xx, male: xy. Mitosis: splitting of cell (if you cut yourself, body will use mitosis duplicate cells to heal) Dominant gene: if you have it, it will be expressed. Recessive gene: you need two copies to be expressed. If it"s one d and one r, r will be masked. Our genes influence the environments to which we are exposed. Passive correlation: child has no control over it. Parents provide environments influenced by their own heredity. Evocative correlation: children evoke responses that are influenced by their heredity. An active, friendly baby is likely to receive more social stimulation than a passive, quiet infant. Active correlation: niche-picking tendency to actively choose environments that complement an individual"s heredity. Eye color: environment can"t influence (ror is minimal) is canalized (env can"t influence)
