Transcription: DNA, or deoxyribonucleic acid, is the fundamental building block of all living things. DNA is found in the nucleus of a cell and determines its form and function. It also passes genetic information from one generation to the next by making exact duplicates of itself. The DNA molecule is in the shape of a double helix resembling a twisted rope ladder. The sides are made up of alternating sections of phosphate and a sugar called The rungs carry the genetic information and consist of four bases. Thiamine, adenine, guanine, and cytosine. There are two bases per rung and only two possible combinati ...
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