PSY355H5 Lecture Notes - Lecture 2: Chromosome, Retina, Hard Wired
Document Summary
Also eventually that genome will disappear from the environment. Artificial selection: even complex features like drug preference- you can breed for or against it in animals like dogs. Gaba (inhibitory nt) is involved in alcohol abuse- actually came from a selection experiment. So the experiment actually made two genetically different dogs- ones that had alcohol preference and others that did not. Induced mutations: targeted mutagenesis- gene knockout, random. Allows you to find new genes involved in particular function. So you know that was the genomic sequence that was complementary to your probes. Mostly no behaviour is 100% plastic or genetically determines- there are however exceptions: so mostly there is interaction between genes and environment. So the brain tricks you because obj that are closer together are more important because of evolutionary reasons- like food, predator, mates. People remember faces of their own race much better than other race- some argue it is genetic predisposition.
