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  • Deoxyribonucleic acid (DNA) is the genetic code which ensures that daughter cells inherit the same characteristics as the parent cells
  • DNA is the code from which all protein is synthesised
  • All prokaryotes, eukaryote and some viruses have DNA
  • All DNA code is composed from four nucleotide bases, Adenine Cytosine, Guanine and Thymine.

DNA also contains all the genetic coding which is used to control functions, behavior and development of an organism. DNA is also used as a long term storage device to store the genetic instructions. These instructions must be correct so the DNA can make an exact copy of itself.

The function of DNA in a cell is to code the way proteins turn genes on or off.

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13y ago

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