PSYC 1115 Chapter Notes - Chapter 4-6: Twin, Autism Spectrum, Tea Bag
Document Summary
Environment: the study of the relative power and limits of genetic and environmental influences on behavior. every nongenetic influence, from prenatal nutrition to the people and things around us. The plans for your own book of life run to 46 chapters 23 donated by your mother"s egg and 23 by your father"s sperm. Each of these 46 chapters, called a chromosome, is composed of a coiled chain of the molecule dna(deoxyribonucleic acid). Genes, small segments of the giant dna molecules, form the words of those chapters. All told, you have 20,000 to 25,000 genes, which are either active (expressed) or inactive. Environmental events turn on genes, rather like hot water enabling a tea bag to express its flavor. When turned on, genes provide the code for creating protein molecules, our body"s building blocks. Dna (deoxyribonucleic acid): threadlike structures made of dna molecules that contain the genes. a complex molecule containing the genetic information that makes up the chromosomes.
