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  • Using computer animation based on molecular research, we are now able to

  • see how DNA is actually copied in living cells.

  • You're looking at an assembly line of amazing miniature biochemical machines

  • that are pulling apart the DNA double helix and cranking out a copy of each

  • strand.

  • The DNA to be copied enters the production line from the bottom left.

  • The whirling blue molecular machine is called helicase.

  • It spins the DNA as fast as a jet engine

  • as it unwinds the double helix into two strands. One stand is copied continuously

  • and can be seen spooling off to the right.

  • Things are not so simple for the other strand

  • because it must be copied backwards.

  • It is drawn out repeatedly in loops and copied one section at a time. The end

  • result is two new DNA molecules.

Using computer animation based on molecular research, we are now able to

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B2 US dna copied helix strand molecular jet engine

Mechanism of DNA Replication (Basic)

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    Szu-Pei Wu posted on 2018/10/29
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