what is DNA ? how is it made ?
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DNA is made of chemical building blocks called nucleotides. ... To form a strand of DNA, nucleotides are linked into chains, with the phosphate and sugar groups alternating. The four types of nitrogen bases found in nucleotides are: adenine (A), thymine (T), guanine (G) and cytosine (C)
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Answer:DNA (Deoxyribonucleic acid ) is the molecules that contains the genetic code of organism .
It is made of Nitrogenous bases , Sugar and Phosphate.
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