How do organic bases in DNA allow it to store information?
Starting point, DNA has 4 bases which may come in any order. First, the double helix can open up and the bases in any particular gene can be transcribed into mRNA. This is a single helix in which the base thymine is replaced by uracil. At this point the information, base order has been read and in being transcribed to mRNA, the information can now be carried from the nucleus (in eukaryotic cells) to the cytoplasm. Second, the mRNA which contains the necessary information binds to rRNA in ribosomes and the information is now read a second time, in groups of 3 bases called codons. Each codon can bind to a third molecule of RNA called tRNA which carries the complimentary codon sequence called an anticodon and the other part of the tRNA molecule carries the corresponding amino acid which then binds to other amino acids to form a protein chain. THis process is translation. In summary – bases in specific order – transcribed to mRNA and carried to nucleus – translated to protein by rRNA and t
