PSYC 250 Lecture Notes - Lecture 1: Heritability, Telomere, Morning Sickness
Document Summary
Phenotype- physical appearance, how those gene get expressed. Dominant-recessive inheritance- when it gets passed on (dominant) when it does not get passed on (recessive) Stress, lack of exercise causes the telomere to get shorter is there a way to rebuild our chromosomes so we don"t die young? yes, exercise helps to rebuild. Genetic recombination two chromosomes can cross over and share dna the input the creates sperm and egg. Principles of behaviour genetics monozygotic twins - identical dizygotic twins - non identical, faternal. Scientist like to study twins because they can see how much environment has to do with child development, especially in they are adopted. You may share genetics with someone but the shared experience has a lot to do with life, your environment has a lot to do with someones development. Heritability- talks about the role of environment and its role in how our genes are expressed environment and genetics is very important to look at.
