PSY 1102 Lecture Notes - Lecture 2: Casual Sex, Allosome, Nature Genetics

• School: University of Ottawa
• Department: Psychology
• Course: PSY 1102
• Professor: Najwa Haddad

Document Summary

There is an interaction between nature and nurture. Genes: our biological blueprint: in every cell we have 46 chromosomes (except reproductive cells, chromosomes: carrier of genetic information in the form of dna, genes are segment of dna. Carry instructions that gives an organism its characteristics, organization, etc. : genes can be active (expressed) or inactive (unexpressed, sometimes only 1 gene is required to produce a characteristic (ex. Size of dog: gene complexes: when genes work together to produce an effect (ex. Obesity: genes are made of nucleotides (biochemical substances) The sequence of nucleotides determines what a gene does: if chromosomes=books, then genes=words and nucleotides=letters, human genome. In 2000, the mapping of genes was mapped. There are over 20 000+ genes in the body. Every human being is 99. 99% similar to other human beings. Repartition of the 0. 01% difference: 5% differences among races , 95% differences within a race , in 2004, a story called nature genetics was published.