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Katarina [22]
3 years ago
14

What determines how reactive an atom is

Biology
1 answer:
BARSIC [14]3 years ago
7 0

The number of electrons in the outermost shell of an atom determines its reactivity.

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2 years ago
How many nucleotides are needed to code for an amino acid
ivanzaharov [21]

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Three nucleotide

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Three nucleotides are required to code for one amino acid. There are four types of nucleotides A, T, G, C which make DNA. So a doublet of nucleotide code which involves only two nucleotide would be insufficient to code for 20 amino acids because if 4 different nucleotide is taken two at a time then it can only produce 16 amino acid(4²=16).

But if we take three-nucleotide than the number reaches 64 which is more than sufficient to code for 20 different amino acids(4³= 64). Therefore 3 nucleotides are needed to code for an amino acid.

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