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All living creatures on earth share some amount of DNA, including mammals, reptiles, fish, plants, sea sponges, bacteria, and viruses. Humans share much more DNA with mammals than any other creature. And we share more DNA with lizards than we do fish. This is because mammals split off from the mammal-lizard common ancestor long after the fish-amphibian common ancestor. Humans share as much as 50% of genes with plants, so our relatedness to nuts is around this figure. It is interesting to note that researchers have found various genes associated with human ailments in different creatures. For instance, the gene connected to deafness has been found in some plants.

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13y ago

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