Question

Genetic information in a DNA molecule is coded in the ______.

Options

• sequence of nucleotides

• base pairings

• turning pattern of the helix

• proportion of each base present

Answer 1

Genetic information in a DNA molecule is coded in the sequence of nucleotides.

Explanation:

Genetic information is carried by the specific order of the four nucleotide bases (A, T, G, C) along a DNA strand; those base sequences (read as codons) specify the amino-acid sequence of proteins. Base-pairing, helix turns, and overall base proportions affect structure and replication but do not encode the primary genetic message.