variation Flashcards

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1
Q

describe a prokaryote

A

70s ribosomes
peptidogylcan cell wall
no nucleus
no cell wall

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2
Q

describe the phototrophic kingdom

A

they get their energy via photosynthesis

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3
Q

what’s variation

A

inherited or environmental diversifications between individuals

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4
Q

what does interspecific mean

A

existing between diff species

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5
Q

what does intraspecific variation mean

A

occurring within a species

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6
Q

give 5 examples of inherited and environmental characteristics

A

height
leaf length
foot size
arm length
number of leaves

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7
Q

what is a discontinuous value

A

any value that is in a continuous range such as hair colour that is in a distinct category and is qualitative

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8
Q

what is a continuous value

A

something such as heart rate that isn’t in a distinct category and is quantitative

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9
Q

what is a homologous species

A

a species with a similar structure but doesn’t have the same function such as the limbs of humans, bats, whales etc

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10
Q

what does analogous mean

A

features are different in structure however they have the same function and there is no common ancestor

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11
Q

what does synthetic medicine mean

A

medicine made in a lab that is artificially created

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12
Q

which kingdom does black sigota belong to

A

fungi kingdom

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13
Q

what’s affected by black sigota

A

banana plants

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14
Q

why is variation important

A

it creates and maintains stable ecosystems

reduces the chances of genetic defects

allows evolution to occur

populations have a better chance to cope with environmental changes

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15
Q

example of interspecific variation

A

great hounds and pugs are an example

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16
Q

example of intraspecific variation

A

lady bird spots

17
Q

how does genetic variation occur

A

sexual repro
combination of gametes is random

independent assortment of alleles during meiosis meaning genes are split between 4 gametes

recombination of chromosomes during meiosis when chromo tips crossover and exchange genes