PSY 105 Lecture Notes - Lecture 2: Shyness, Mendelian Inheritance, Critical Period
Document Summary
Fetus at 20 weeks: more time spent with head down, facial expression components present, weight gain and cramped quarters in amniotic sac. Singing: rocking the baby, holding the baby to your shoulder, giving it a pacifier. Small drop of something sweet on their tongue: negative outcomes at birth, low birth weight, under 5. 5, very low is under 3. Illness: poor nutrition, emotional distress, cigarette smoking, drug abuse. Shuffling of the 23 pairs of chromosomes: crossing over, contribution to the child"s genotype to his or her own phenotype, uppercase letters are dominant. Lowercase letters and recessive: dominant traits are expressed in the phenotype, homozygous dominant, ee, detached earlobes, heterozygous, ee, detached earlobes, homozygous recessive, ee, attached earlobes, mendelian inheritance, polygenetic inheritance, multiple genes control one trait, eye color. If raised in a healthy environment, they don"t have consequences. Influence of the child"s phenotype on his or her environment: the active child, behavior evokes responses from others.
