PSY100H1 Chapter Notes - Chapter 3: Chemical Synapse, Resting Potential, Somatic Nervous System
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PSY100H1 Full Course Notes
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Chromosomes: structures within the cell body that are made up of genes. Gene: the unit of heredity that determines a particular characteristic in an organism. Dominant gene: a gene that is expressed in the offspring whenever it is present. Recessive gene: a gene that is expressed only when it is matched with a similar gene from the. Genotype: the genetic constitution determined at the moment of conception. Phenotype: observable physical characteristics that result from both genetic and environmental other parent influences. Monozygotic twins: twin siblings who result from one zygote splitting in two and therefore share the same genes (identical twins) Dizygotic twins: twin siblings who result from two separately fertilized eggs (fraternal twins) Heritability: a statistical estimate of the variation, caused by differences in heredity, in a trait within a population. + depends on variation, the measure of the overall difference among a group of people for that particular trait.
