PSYCH 10 unit 3

long molecule that forms into a winding ladder called double helix

we have 23 pairs of this, 23 from mom and 23 from dad, its when DNA is coiled upon itself

A segment of DNA that is used to code for making proteins.

two forms of SAME gene. one of this is found on each pair of chromosomes and is from each parent. they can be DOMINANT, RECESSIVE, OR COMBO

persons genetic material due to allele configuration, created when allele from male sperm and one from female egg come together. it can be homozygote or heterozygote.

PHYSICAL or BEHAVIORAL characteristic of gene

when someone has two of SAME alleles

when someone has a DOMINANT and RECESSIVE allele

trait caused by ONE gene

trait caused by influence of many genes

study of how behaviors and experiences influence how our genes are expressed

influenced by genetic inheritance and other biological factors

influence of external factors

idea that our genes affect how we nurture and are nurtured by others

stats term relating the INFLUENCE of genetics and environment on TRAITS

behavioral similarity of MONOZYGOTIC TWINS(identical) and DIZYGOTIC TWINS (fraternal) is compared and twins raised together vs adopted.

theory of natural selection by charles darwin is based on these 5 basic principles

ALL members of population show variations in their traits

ALL organisms produce more offspring than can survive to reproduce. yet populations stay stable.

theres a competition for resources like food

some members of population have genetic advantages that help them survive and reproduce.

as environment changes and applys different pressures, organisms change though generations

was a movement in late 1800s and early 1900s that applied theory of natural selection to humans and promoted reproduction of people with "good genes' and prevented reproduction of people with "bad genes".

looks at psych traits through the lens of the theory of natural selection and the function and adaptiveness of human behavior

genes that influenced adaptive behaviors for our ancestors, motivate behaviors that are MALADAPTIVE today. ex, cravings for foods with high sugar, salt, and fats

behaviors that help others but harm the person doing the behavior

difference between sexes in animals in what they find sexually attractive.

type of altruism where one member of group helps another with the assumption that help will be returned in the future.