How many types of DNa are
aurora4652:
Dna doesn't have any types
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Four type of
A
B
Ab
O ,.......................
make me brainlist
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DNA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C). The order of these bases is what determines DNA's instructions, or genetic code.
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