DNA Structure & Function

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6 Terms

1
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What is the structure of DNA?

A double helix of two antiparallel strands held together by complementary base pairing.

2
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What does antiparallel mean in DNA strands?

One strand runs 5′ → 3′ and the other 3′ → 5′.

3
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What does DNA store?

The genetic code that determines the sequence of amino acids in proteins.

4
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What is the role of DNA in RNA synthesis?

DNA acts as a template for the synthesis of RNA during transcription.

5
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What is the role of RNA in protein synthesis?

RNA carries the genetic code from DNA to ribosomes, where proteins are built.

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Why is RNA less stable than DNA?

The extra hydroxyl (-OH) group on ribose makes it more reactive.