PS102 Lecture Notes - Lecture 9: Adult Attention Deficit Hyperactivity Disorder, Critical Period, Nicotine
Document Summary
Emerges early- peaks- diminishes with age: u-shape function. Different cohorts grew up in different time periods. Pros and cons of both the longitudinal and cross-sectional. Genes: basic building blocks of our biological inheritance. Dna: molecules in which genetic information is coded. Chromosomes: strands of dna; each human being has 46 chromosomes in 23 pairs. Allele: the 2 genes, one on each chromosome, that control the same trait. Homozygous: both parents contribute the same genetic material for a particular trait. Heterozygous: parents contribute 2 different alleles to offspring. Each chromosome contains numerous gene segments of dna that contain instructions to make proteins- the building blocks of life. One chromosome of every pair is from each parent. Each nucleus contains 46 chromosomes, arranged in 23 pairs. The human body contains 100 trillion cells. The sum total of all the genes that a person inherits. The way in which the genes are actually expressed, or observed characteristics of the genes.
