Psychology 1000 Lecture Notes - Lecture 8: Karyotype, Twin, Mental Chronometry

• School: Western University
• Department: Psychology
• Course: Psychology 1000
• Professor: Dr.Mike

Document Summary

Karyotype: genetic blueprint (what your genes are like) they are going to be different in different species. Human karyotype: 23 pairs, 22 autosomes + sex chromosomes. Genes (dna) rna protein molecules (sequence of amino acids) The i(cid:374)flue(cid:374)(cid:272)e of ge(cid:374)es is through protei(cid:374) s(cid:455)(cid:374)thesis there are (cid:374)o ge(cid:374)es (cid:862)for(cid:863) a particular attribute. Reaction time- measure of intelligence, how fast can you react to a certain stimulus (faster= faster neuron connections, axons that are heavily myelinated fast signal processing) Environment can influence protein synthesis as well. Genes determine range of possibilities, but not degree of expression. Good e(cid:454)a(cid:373)ple of that is (cid:272)alled the (cid:272)riti(cid:272)al period . Environmental exposure at specific interval is critical. White-crowned sparrow must hear adult song between 7th and 60th day of life- if the(cid:455) do(cid:374)"t hear (cid:373)o(cid:373) or dad do that the(cid:455) (cid:449)ill (cid:374)e(cid:448)er k(cid:374)o(cid:449) the so(cid:374)g. Phenotype: outward expression of genotype (characteristics, behaviors, etc. ) Outward characteristics may not indicate underlying genetic contribution eg. hair colour.