Base pair

Two bases on opposite strands of a DNA molecule that are held together by weak chemical bonds. In DNA’s double helical structure, a base pair forms one ‘rung’ of the DNA ‘ladder’. The rules of base pairing are that A always binds to T and C always binds to G. The bp is also the measurement unit of DNA; the human genome contains more than 3,000,000,000 bp.

This page was last updated on 2014-10-14

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