🧬 DNA DOUBLE HELIX LAB
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Base Pairs

A Adenine
T Thymine  — pairs with A
G Guanine
C Cytosine — pairs with G
Phosphate backbone

About DNA

A–T Bond: Adenine pairs with Thymine via 2 hydrogen bonds
G–C Bond: Guanine pairs with Cytosine via 3 hydrogen bonds — stronger!
Structure: Right-handed double helix, ~10 base pairs per turn, 3.4 nm pitch
Mode: Double helix — the stable storage form of genetic information
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