Question

Which of the following statements is/are wrong?
I. Six codons do not code for any amino acid.
II. A codon is read in mRNA in a contiguous fashion.
III. Three codons function as stop codons.
IV. The initiator codon AUG codes for methionine.

• A. I, II and IV
• B. I, II and III
• C. II, III and IV
• D. II
• E. I

Answer 1

The correct option is E I

The codon is triplet, 61 codons code for amino acids and 3 codons (UAA, UAG and UGA) do not code for any amino acids hence, they function as stop codons.
Hence only statement I is wrong.