Question

Genetic information in a DNA is coded in the

• A. Sequences of nucleotides
• B. Base pairing
• C. Proportion of each base
• D. None of the above

Answer 1

The correct option is A Sequences of nucleotides

Genetic code is the arrangement of nucleotides in the polynucleotide chain of a chromosome; it governs the transmission of genetic information to proteins, i.e., determines the sequence of amino acids in the polypeptide chain making up each protein synthesized by the cell. Genetic information is coded in DNA by means of four bases: two purines (adenine and guanine) and two pyrimidines (thymine and cystosine). Each adjacent sequence of three bases (a codon) determines the insertion of a specific amino acid. In RNA, uracil replaces thymine

So, the correct answer is 'Sequences of nucleotides'