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BITSAT 2015
Exam
BITSAT
Year
2015
Subject
Chemistry
Chapter
Biomolecules

BITSAT 2015 · Chemistry · Biomolecules

A sequence of how many nucleotides in messenger RNA makes a codon...

A sequence of how many nucleotides in messenger RNA makes a codon for an amino acid?

Options

  1. AThree
  2. BFour
  3. COne
  4. DTwo

Correct answer

A. Three

Step-by-step solution

The sequence of bases in mRNA are read in a serial order in groups of three at a time. Each triplet of nucleotides (having a specific sequence of bases) in known as codon. Each codon specifies one amino acid. Further since, there are four bases. therefore, 43=644^{3}=64 triplets or codons are possible.
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