DNA Structure

What is the DNA molecule made of?
Learn about the structure of DNA
( Deoxyribonucleic acid )
DNA is a very large molecule made of nucleotides.
Each nucleotide is made of a phosphate, a sugar and a nitrogen base.
The four bases are thymine, adenine, cytosine, and guanine.
Together they form a double helix.
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For more Life Science videos and summaries see,
http://www.moomoomath.com/Middle-School-Science-and-Biology.html