The average length of a transcription unit along a eukaryotic dna molecule is about 27,000 nucleotide pairs, whereas an averaged-sized protein is about 400 amino acids long. what is the best explanation for this fact?

clumped distribution, because you'de have all of the population gathered in a relatively small are.

it's the most common because it provides protection and a mate for reproduction

example: humans, seeweed, cattles, etc.