evolution Flashcards

(26 cards)

1
Q

what is a genotype

A

refers to the genetic makeup of an organism

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2
Q

what is phenotype

A

physical characteristics determined by genes and the environment

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3
Q

what are dominant genes

A

strong
more represntative

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4
Q

what are recessive genes

A

weaker gene
not expressed

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5
Q

what is an example of an environment trigger on genes

A

oxygen level
humidity
light cycle

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6
Q

what is evolution

A

inherited characteristics that are developed in organisms and are evolved slow process

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7
Q

what is natural selection

A

the differential survival and reproduction of individuals due to differences in phenotype

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8
Q

how does natural selection effect population

A

population ill have a higher percentage of survival and less disadvantaged genes

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9
Q

what is a heritable trait

A

many characteristics have a genetic tendent combined with experience in the environment

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10
Q

what is sexual selection

A

a type of natural selection and competition for mates along with the development of characteristics that aid reproductive success drive evolution

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11
Q

what is the role of the pre-frontal cortex

A

regulates our thoughts, actions and emotions

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12
Q

where is the amygdala found

A

in the prefrontal cortex

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13
Q

what is the thalamus responsible for

A

relaying sensory and motor signals as well as a regulation of consciousness and alterness

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14
Q

what is the amygdala responsible for

A

emotional control
memory and learning

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15
Q

what is hypothalamus responsible for

A

releasing hormones, managing sexual behaviour, regulating emotional responses

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16
Q

what is the old brain responsible for

A

its designed to control the most basic functions for life including breathing, attention and motor responses

17
Q

what is the old brain mostly made up of

A

limbic system
prefrontal cortex

18
Q

what is indirect aggression

A

covert (hidden)
e.g gossip

19
Q

what is relational aggression

A

overt (open)
e.g breaking off group

20
Q

why would Brendgen et al criticise the evolutionary explanation of social aggression

A

girls are more socially aggressive
boys are more physically aggressive
nurture not nature

21
Q

why have we evolved our prefrontal cortex

A

to resist jealous impulses as it is now considered as unattractive

22
Q

describe how David Buss (1988) explains how aggression is used to maintain mates

A

males use two retention strategies to control partners- direct guarding (controlling her movements) and negative inducements (prevent her from straying)

23
Q

why does aggression occur in men

A

to acquire status which increases resources and mates, which increases the survival of themselves and offspring

24
Q

describe how Daly and Wilson (1985) supports the explanation of aggression in males

A

males from lower statuses have a high chance of being offenders/victims

most victims/offenders know each other so know each others status

25
why do women have aggression
social aggression not physical aggression social aggressive so the man passes down genes and protection of offspring detrimental effects on offspring if mother is aggressive
26
describe how Hill & Hurtado (1996) supports the explanation of aggression in women
Paraguay children are 5x more likely to die if mother dies and 100% if it happens before the child is 1 year old