Adaptation Variation Inheritance DNA Flashcards

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1
Q

what do most cells in your body have

A

a nucleus

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2
Q

what is DNA made of

A

a long coiled up length of a molecule

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3
Q

what is DNA

A

a long list of instructions on how to build an organism

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4
Q

what is a gene

A

a short section of a chromosome

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5
Q

where do inherit characteristics from

A

our parents

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6
Q

what does hereditary mean

A

when genes are passed down

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7
Q

what shape is DNA

A

a double helix

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8
Q

why do organisms show variation

A

because of a difference in their genes

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9
Q

what does biodiversity mean

A

the variety of different species on earth

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10
Q

what are characteristic features

A

a difference in a species eg height, hair colour

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11
Q

what is it called when characteristics change in a species

A

natural selection

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