Question

What is not true for genetic code ?

• A. It is nearly universal
• B. A codon in m-RNA is read in a non-contiguous fashion
• C. It is unambiguous
• D. It is degenerate

Answer 1

Answer: (B)

The relationship between the sequence of amino acids in a polypeptide and nucleotide sequence of DNA or wRNA is called genetic code. The genetic code is continuous and does not possess pause after the triplets. So a codon in RNA is a non-contiguous fashion. If a nucleotide is deleted or added, the whole genetic code will read differently.