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Mathematics, 20.09.2019 21:00 beachgreentag
Dna (deoxyribonucleic acid) is the basic building block of reproduction in living things. a dna chain is a sequence of chemicals called bases. there are four possible bases: thymine (t), cytosine (c), adenine (a), and guanine (g). (a) how many nine-element dna chains are possible? x dna chains
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