DNA Structure Flashcards by Lourdes Toomaga

Q

Subnits which make up DNA are

A

nucleotides - monomer

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Q

Each nucleotide has 3 components of what

A

sugar, phosphate and nitrogenous bases

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Q

4 nitrogenous bases

A

adenine, thymine, guanine, cytosine

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Q

Complementary base pairs

A

adenine + thymine
guanine + cystosine

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Q

DNA contains two long strands called

A

sugar phosphate backbones

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Q

Bonded bases make a

A

base pair

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Q

Helix is characterised by

A

2 spiralling sugar phosphate backbones
Perpendicular nitrogenous bases bound in base pairs

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Q

Sugar phosphate backbone is made of

A

deoxyribose sugar and phosphate

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Q

A

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