The structure of DNA was a very big discovery in the science community. It wasn't known until after World War II, not that long ago! DNA consists of not very many parts, that I will be explaining today. First let's start with nucleotides. They are the combination of a sugar, phosphate, and a base. There is always one sugar and one phosphate, but the base varies. There are four different bases: adenine, thymine, guanine, and cytosine. These two pairs always paired up with each other. The amount of thymine is always an  equal amount of adenine. Same for guanine and cytosine. Last but not least, DNA is shaped like a twisted ladder, or double helix, which is the correct term.

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    Author: Vahae O.

    The Science Solutions blogs are about various science subjects. Some of these blogs might help you with various science problems.