PSYCH 1100 Lecture Notes - Lecture 1: Heterochromia Iridum, Eye Color, Pentose
29 Aug 2015
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Developmental psychology: the study of progressive changes in behaviour and abilities. Heredity (nature): genetic transmission of physical and psychological characteristics from parents to their children. Dna (deoxyribonucleic acid): molecular structure shaped like a double helix that contains coded genetic information. Even when they are reared apart, identical twins are strikingly alike in motor sills, physical development and appearance. at the same time twins are less alike as adults than they were as children, which shows environmental in uences at work. Deoxyribose ( a pentose = sugar with 5 carbons) Organic (nitrogenous) bases: adenine thymine, guanine and cytosine. Chromosomes: 23 pairs in humans, with 26,000-40,000 genes. Personal traits or physical properties that are in uenced by many genes working in combination. David bowie, after getting in a ght has one eye that does not dialate making his eyes 2 di erent colours. Heterochromia : eye colour is determined primarily by the concentration and distribution of the melanin within the iris tissues.
