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SGWessells
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This shows that a basic level of genetic material is shared by a wide range of species, because they share basic structures and methods by which life develops;but the shared material diminishes the further those species diverge from one another, exactly as one would expect if evolution is correct. The wider the classification, the more features its members have in common.**Cats **have 90% of homologous genes with humans, 82% with dogs, 80% with cows, 79% with chimpanzees, 69% with rats and 67% with mice. (source)
If one adds in the fact that all life shares around 500 or so conserved (immortal) genes the genetic piano idea looks better and better.
- **Cows **(Bos taurus) are 80% genetically similar to humans (source)
- 75% of mouse genes have equivalents in humans (source), 90% of the mouse genome could be lined up with a region on the human genome (source) 99% of mouse genes turn out to have analogues in humans (source)
- The fruit fly (Drosophila) shares about 60% of its DNA with humans (source).
- About 60% of chicken genes correspond to a similar human gene. (source)
You do realize, I trust, that “immortal gene” is metaphorical, right? It just means they have lasted through billions of years of evolution by weeding out whatever mutations occurred, and form the basis of many forms of life. When the sun turns into a red dwarf in about 5 billion years, they will be roasted like everything else.