Why so much DNA?

The human geonome - and most mammalian genomes are far larger than they have to be:

• 300x larger than Brewer’s Yeast (Saccharomyces cerevisiae
• 30x larger than Vinegar Eel (Caenorhabditis elegans)
• 20x larger than Fruit Fly (Drosophila melanogaster)

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