People who study genes today as a change in the order of understand mutations deoxyribonucleic acid or DNA. DNA is made up of individual units called nucleotides. These nucleotides form long spiraling chains. The location of nucleotides along the DNA chain determines the living characteristics of an organism. DNA provides the as organisms in the same way genetic information for a picture that the hard drive of a computer carries information. J on a computer screen becomes distorted us when one changes its digital coding a mutation happens when a specific seduence of DNA is altered. Mutations may involve the removing or changing of only one or a few nucleotides. The result, however, may dramatic be very