If a DNA sequence consists of 12 nucleotides, how many mRNA codons will there be?

1 Answer
mrpauller.weebly.com
Nov 3, 2015

There would be 4 codons.

Explanation:

When RNA is made during the process of transcription, there is one nucleotide in the RNA molecule for every one nucleotide from the template strand of the DNA molecule.

So a DNA sequence of 12 nucleotides will produce an RNA sequence which also has 12 nucleotides.

A codon is like a three letter word in the language of molecular biology. Three nucleotides of RNA are one codon. Since codons do not overlap, a sequence of 12 nucleotides will contain 4 codons.

12/3 = 4

Learn more about how this works by watching the video below.

Video from: Noel Pauller

Hope this helps!

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