Psychology 2040A/B Lecture Notes - Lecture 2: Cellular Differentiation, Variance, Molecular Genetics

• School: Western University
• Department: Psychology
• Course: Psychology 2040A/B
• Professor: J.Bruce Morton

Document Summary

Development change in size and differentiation of structures over time. (process of growth and differentiation) Understanding biology helps us understand the 2 aspects of change that occur in development: growth and differentiation processes. Boys and girls develop at different rates and have different differentiations. Conception successful fertilization of sperm and egg/ova. Half chromosomes come from male, half from female, end up with 23 pairs of chromosomes. Similar to other humans but is unique for every person. This is just the chromosomes (sequence of dna), but there are many processes before the genome starts to express itself. Constant interplay between genes and emerging levels of organization (development that confirm themselves over the course of development) Important to know where genes are in chromosome. When in nucleus, they are all twisted up with each other. The chromosome is a long strand of dna that is all wrapped up. A gene is a short sequence of base pairs that comprise the dna.