Question

multiple choice question
the genetic code is specified by groupings of ______ nucleotides, where each grouping determines a particular amino acid that will be inserted into a polypeptide chain.
o 3
o 4
o 2
o 1
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Explanation:

In molecular biology, the genetic code is made up of codons, which are groupings of 3 nucleotides. Each codon specifies a particular amino - acid to be added to a polypeptide chain during translation.

Answer:

A. 3