PSY100H1 Chapter Notes -Resting Potential, Efferent Nerve Fiber, Chemical Synapse

• School: UTSG
• Department: Psychology
• Course: PSY100H1
• Professor: Ashley Waggoner Denton

Document Summary

Textbook notes week 3. 81 124, (biological foundations) Monozygotic twins: twin siblings who result from on zygote splitting in two and therefore share the same genes, (identical twins) Dizygotic twins: twin siblings who result from two separately fertilized eggs, (fraternal twins) Comparison of monozygotic twins who have been raised together with ones who were raised apart. Identical twins, raised together or not, were likely to be similar. Social and environmental contexts influence genetic expression: adoption studies: compare the similarities between biological relatives and adoptive relatives. The assumption is that similarities among nonbiological adopted siblings have more to do with environment than with genes. Growing up in the same home turns out to have relatively little influence on many traits, such as personality. = carrying information from the brain to the muscles. Genetic expression can be modified. How does the nervous system operate. Neurons are specialized for communication.