PSY210H5 Chapter Notes - Chapter 2: Fragile X Syndrome, Heritability, Fetus
Document Summary
Genotype the particular set of genes that a person inherits from her parents. Phenotype created by the interaction of a person"s genotype, or genetic makeup, with the environment; the visible expression of the person"s particular physical and behavioural characteristics. In the moist environment of a woman"s oviduct, the sperm and egg unite to create a new living organism that has the potential to develop into a human being, called a zygote. Ovum the female germ cell, or egg; is the largest human cell. Chromosomes thread-like structures, located in the central portion, or nucleus, of a cell, that carry genetic information to help direct development. At the moment of human conception, when the sperm and egg unite, 23 chromosomes from each of these cells join together to create 23 chromosome pairs (46 altogether) Pairing is possible since each chromosome is homologous (similar in shape and function)
