TED-EdDNA: The book of you - Joe Hanson
TV-PG
2012 • E91 26 nov 2012 10minYour body is made of cells -- but how does a single cell know to become part of your nose, instead of your toes? The answer is in your body's instruction book: DNA. Joe Hanson compares DNA to a detailed manual for building a person out of cells -- with 46 chapters (chromosomes) and hundreds of thousands of pages covering every part of you.