Question

Genetic code is

• A. Universal
• B. Non-ambiguous
• C. Triplet
• D. All of the above

Answer 1

The correct option is D All of the above

• The genetic code is the set of rules by which information encoded within genetic material, i.e., the DNA or mRNA sequences, is translated into proteins by living cells.
• The genetic code is highly similar among all organisms and can be expressed in a simple table with 64 entries. Hence, it is universal.
• There is no ambiguity in the genetic code. A given codon always codes for a particular amino acid wherever it is present.
  
• The coding units or codons for amino acids comprise three-letter words, 4 x 4 x 4 = 64 codons to specify 20 proteinous amino acids.
  

So, the correct answer is option D.