So, when we compare the DNA of different organisms, we find that they're all surprisingly similar. I mean, it's like they're all part of one big happy family, with similar genes and similar instructions. For example, did you know that humans and chimpanzees share a whopping 98.8% of their DNA? That's like being long-lost cousins or something!
This similarity is strong evidence for evolution, because it suggests that all living things shared a common ancestor at some point in the distant past. It's like we all came from the same primordial soup, and over time, our DNA evolved and changed to create the diversity of life we see today. And, let me tell you, it's been a wild ride ever since!
But, here's the thing: DNA isn't just similar between species, it's also different in ways that are unique to each organism. It's like each species has its own special genetic fingerprint, that sets it apart from all the others. And, by studying these differences, scientists can reconstruct the evolutionary history of a species, and figure out how it evolved over time.
How Is Dna Evidence Used to Show Evolutionary Relationships - Haylee
