National Geographic recently published an article on a statistical study by biochemist Douglas Theobald, which attempts to give proof of universal common descent by looking at the odds of producing certain identical genes in all species given the starting positions of universal common descent, multiple ancestry, and creationism. National geographic titles it’s article, “All Species Evolved From Single Cell, Study Finds: Creationism called ‘absolutely horrible hypothesis’—statistically speaking.” The study quotes the odds of Creationism being correct as 1 in 10 to the 6,000th power.
Answers in Genesis has a rather succinct response:
The argument against multiple, unique origins of different life-forms, as stated by National Geographic News, is that “[i]f life arose from multiple species—each with a different set of proteins—many more mutations would have been required” and that “it’s highly unlikely that the protein groups would have independently evolved into such similar DNA sequences.” However, those claims obviously presuppose an evolutionary perspective—i.e., that similarity but separate origin could have only occurred via chance processes…
The obvious flaw with Theobald’s conclusions, as we pointed out, is that he assumes protein similarity must have come about either by common ancestry or by the process of evolutionary convergence. Creationists adopt neither view, however, because there is a better view available: common design. Even amid the chasm of differences between various organisms, fundamental similarities make sense in light of a single Designer who re-used many of the basic biological mechanisms throughout life.
How difficult it is for natural selection to converge the genomes of multiple species has little to do with whether Creationism is correct or incorrect. Creationists aren’t the ones who are arguing for genomic convergences, Darwinists are. As a software designer, I find it difficult to understand how or why anyone would argue that similar code sequences in different species in any way eliminates the design argument. Most coders use the same classes in multiple projects – it is the intelligent thing to do. To assume that the Creator of all life must have done otherwise and that any design similarities would need to be due to evolutionary convergence is itself an “absolutely horrible hypothesis”.