PSYC 2110 Lecture Notes - Lecture 2: Meiosis, Chemical Substance, Egg Cell
7 May 2019
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Document Summary
Chromosomes are rod-like structure made up of dna. What genes determine traits and disorder (predisposition) Ex. person may have predisposition for disorder (genes) but not environments. Chromosomes are rod like structures which store and transmit genetic information. Chromosomes are made up of a chemical substance called deoxyribonucleic acid (dna) A gene is a segment of dna along the length of the chromosome. Protein-coding genes directly affect our body"s characteristics. Regulator genes modify the instructions given by protein-coding genes. Genotype: refers to the genetic material of the individual. Phenotype: refers to the apparent, observable, measurable characteristics of the individual. Genotype: the complex blend of genetic information that determines our species and influences all our unique characteristics. Phenotype: directly observable characteristics (ex. one child looks more like one particular parent and another looks like a mix of both) Sperm and egg combined (gametes) are formed through meiosis which halves the number of chromosomes normally present in body cells.
