PSY210H5 Lecture Notes - Lecture 3: Fragile X Syndrome, Transgenerational Epigenetic Inheritance, Prenatal Development
Document Summary
Thread like structure located in nucleus of cell that carries geneic informaion. Contain speciic regions called genes which code for producion of proteins. Complete set of 46 chromosomes found in every cell except sex cells (half of the info) In each pair, one chromosome from mom and one from dad. Genotype: paricular set of genes a person inherits from parents. Role of heredity and maturaion factors vs role of learning and experience. Contemporary psychology sees interacions of both in development in genes inluence environment and environment inluences expression of genes. Range of reacion: heredity doesn"t ix behaviour but establishes a range of possible development outcomes may occur in response to diferent environment. Study of cellular and physiological trait variaions aren"t caused by changes in dna sequence. Study of external/environmental factors turn genes on/of and afect how cell is read. Epigeneic tags normally part of cell difereniaion: each cell type geneically idenical but diferent genes acivated can do diferent funcions.
