PSY 2301 Lecture Notes - Lecture 6: Epigenome, Hexa, Jerky

• School: University of Ottawa
• Department: Psychology
• Course: PSY 2301
• Professor: Andree- Anne Ledoux

Document Summary

Allele disorders: must finish last slides from other lecture. In order to have tay-sachs you must inherit two recessive alleles from either two carriers, or someone must be a fully infected person: many times this occurs through inbreeding. Chromosome abnormalities these are genetic disorders the involve abberrations in part of a chromosome, or the entire chromosome, rather than a single defective allele. Down syndrome: trisomy 21 (mother gives two chromosome 21s to the infant) resulting in (check slide) children with down syndrome can learn to compensate greatly for the brain changes that cause their mental handicaps. Selective breeding: effective way to alter gene expression, maintaning spontaneous mutations is one objective of selective breeding think of breedin dogs, we got ones that can run fast, haul heavy loads, retrieve prey, dig for burrowing animals. Transgenic techniques: chimeric animals; before embryonic genesis is occurring, we transplant cells of another species into it.