Helicase is the molecular machine that duplicates DNA before cell division. It spins as fast as a jet engine adding 1,000 nucleotides per second to the growing chain and only makes 1 mistake every 100,000 couplings! More in the comments.

Helicase is the molecular machine that duplicates DNA before cell division. It spins as fast as a jet engine adding 1,000 nucleotides per second to the growing chain and only makes 1 mistake every 100,000 couplings! More in the comments.