PSY 1305 Lecture Notes - Lecture 6: Parenting, Menarche, Heritability

• School: Baylor University
• Department: Psychology
• Course: PSY 1305
• Professor: Danielle Young

Document Summary

Genes: biochemical units of heredity that make up chromosomes, when genes are expressed, they provide the code for creating the proteins that form our (cid:271)ody"s (cid:271)uildi(cid:374)g (cid:271)lo(cid:272)ks. Genome: the shared genetic profile that distinguishes humans from other species; consisting of all ge(cid:374)eti(cid:272) (cid:373)aterial i(cid:374) a(cid:374) orga(cid:374)is(cid:373)"s (cid:272)hro(cid:373)oso(cid:373)es. Includes 46 chromosomes in 23 matched sets; each chromosome has the same gene locations: this includes the x and y chromosomes, a biological parent donates half his/her set of chromosomes to his/her offspring. Identical twins develop from a single fertilized egg: can share the same placenta or be different. Fraternal twins develop from two fertilized eggs: do not share the same placenta. Understanding the effects and interactions of nature and nurture. Studies of twins in adulthood show that identical twins are more alike than fraternal twins in: personality traits, behaviors/outcomes, abilities. Similarities found in identical twins despite being raised in different homes: personality, styles of thinking, and relating, abilities/intelligence test scores, attitudes.