Explaining the DNA structure, 3D animation with basic narration
Description:
The Double Helix
Transcript:
Considering the complex functions of DNA, its structure is simple. The two DNA strands run in opposite directions and twist together to form a stable double helix. During replication or gene transcription, the 2 strands unwind and unzip. This allows one or both strands to be copied after which the strands are able to re-associate and twist back to their helical structure.
Keywords:
dna strands,double helix,dna structure,gene transcription,helical structure,base pairing,narration,replication,animation
Although the chemistry was wrong, Linus Pauling's triple-stranded DNA model was a catalyst for James Watson and Francis Crick to solve the structure of DNA.
DNA is used as a template for copying information.
Knowing the structure of DNA, scientists speculated and then proved that DNA is the template for copying the genetic code.
James Watson and Francis Crick explain how they solved the structure of DNA. Erwin Chargaff explain how he measured the levels of each of the four nitrogenous bases.