DNA Struct Flashcards by Ivy Hsieh | Brainscape

Q

Ratio?

A

A:T=1

C:G=1

Purines: pyrimidines=1

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Q

Purine + pyrimidine =?

A

2.0 nm bt two sugar phosphate backbone

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Q

One complete turn has?

A

Helix of 10 base pair;

3.4 nm

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Q

Two strands are held by?

A

H bond;

Complementary base pairing

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Q

Four significance of DNA base pairing

A

Constant diameter;

Stability;
-large no of H bonds

Template;
-DNA replication to px new strands;

Proofreading;
-detect anomalies in base pairing

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