Final answer:
The coding sequences contain the greatest amount of genetic information in a complex eukaryotic genome.
Step-by-step explanation:
Eukaryotic genomes consist of three broad classes of DNA sequences: coding sequences, non-coding sequences, and repetitive sequences. Among these, coding sequences contain the greatest amount of genetic information. These sequences are responsible for producing proteins, which are the building blocks of cells and carry out essential functions in organisms.
Non-coding sequences, on the other hand, do not code for proteins but still have regulatory roles in gene expression. Repetitive sequences repeat multiple times throughout the genome and make up a significant portion of eukaryotic genomes, but they do not contribute as much genetic information as coding sequences.