DNA & genes Flashcards

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1
Q

how can the shape of a DNA strand be described

A

double helix structure

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2
Q

what does DNA strands contain

A

series of nucleotides

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3
Q

what does each nucleotide consist of (3)

A

1) deoxyribose (sugar)
2) phosphate
3) nitrogenous base

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4
Q

what are the 4 nitrogenous bases + their sign

A

1) adenine (A)
2) thymine (T)
3) cytosine (C)
4) guanine (G)

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5
Q

pairing of bases: which base
goes with with

A

A+T/T+A
C+G/G+C

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6
Q

what’s a gene

A

a segment of DNA containing the instructions to make protein

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7
Q

how is a gene created

A

a sequence of bases (A,T,C,G)

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8
Q

what a genome

A

all of the genes we receive from
our parents put together

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