How many amino acids are encoded in 1 DNA strand, which consists of 180 nucleotides, if it is 1/3

univerkov | April 12, 2021 | education

How many amino acids are encoded in 1 DNA strand, which consists of 180 nucleotides, if it is 1/3 of non-informational sequences?

If 1/3 of the sequence is not informed, then 2/3 are informed that (180 * 2) / 3 = 120. One amino acid is encoded by three nucleotides, which means we divide all informed ones by 3, that is, 120/3 = 40. That means forty amino acids are encoded in this chain.
You can solve in the second way, we find the number of amino acids (sequences): 180/3 = 60. Since 1/3 are not informed, we multiply 60 by 1/3 and we get 20, therefore informed 60 – 20 = 40.

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