Flashcards
Evolution
Cards in this deck (21)
- 1Proximate causesLifetime influences that lead to traits and behaviours
- 2Ultimate causesInfluences during evolution that have led to the traits we have
- 3Chromosomestructure containing DNA, carrying instructions for building and operating the body
- 4GenesA sub part of DNA that describes the structure of proteins
- 5Gene expressionProcess in which DNA is replicated, transcribed into RNA, that is then translated into protein. They will only be expressed under certain conditions
- 623 pairsThe amount of chromosomes collectively from sperm and egg cells to produce a baby.
- 7AllelesA variation of a gene (IE expressed as dimples or not dimples)
- 8Incomplete dominanceWhen neither dominant nor recessive genes are expressed
- 9Polygenic genesA term for genes that express a complex trait that needs many genes and has many alleles
- 10Natural selection vs sexual selectionThe two ways in which evolution works:
1. Adaptations that allow a species to survive (eat, drink, live)
2. How these adaptations are passed on to the next generation (sexual attraction) - 11The steps of natural selectionVariation: There is variation between species.
Inheritance: Traits are passed on to offspring
Selection: Some live, some die
Time: Those that live continue to reproduce over a long period of time. - 12Inter-sexual selectionPicking a mate of the opposite sex because they have advantageous genes.
- 13Intra-sexual selectionSame sex competing for a member of the opposite sex.
- 14Environment of Evolutionary Adaptiveness (EEA)The environment in which a species has to adapt to in order to survive
- 15PreparednessOur innate predisposition to learn some associations more easily and readily than others.
- 16Bateman's principle of sex differences in mate preferencesWomen tend to be more picky than men due to the impact of pregnancy on them
- 17Triver's principle of sex difference in mate preferencesParental investment is different between the sexes:
Females are concerned with material resources (money, social standing)
Males are more concerned with biological resources (how a women looks, her youth) - 18Naturalistic fallacythe idea that evolution 'improves' a species
- 19Niche constructionthe ability for a species to change their environment around them
- 20Species specificA characteristic only seen in one species
- 21Species generalA characteristic seen in many species (IE smiling)
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- Psychology (SP301 ) Flashcards on Evolution, created by chantel Smith on 05/03/2018.
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- chantel Smith
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