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Showing posts from April, 2022

The Onion Test

The onion test has been used to batter creationists for many years. It is based on the fact that onion DNA is five times the length of human DNA, and challenges creationists to explain why the designer would make it that way.  A lot of ID arguments are based on information. Why, then, does an onion, a very mundane plant, need fives times as much information in its DNA as humans do? This has become more of a hot topic with the results of the ENCODE project being published, and the realisation that much of what was previous thought of as "junk" DNA is not actually junk. IDists say this is what ID predicted, though they seem very reluctant to say exactly what that prediction was - exactly how much junk do they predict? They also claim 80% junk DNA is a failed prediction of evolution, which, as far as I can tell, is simply not true. The 80% figure was what earlier observation seemed to indicate, not what was predicted by evolution. Evolution could explain that figure, but it can ...

Evolution of the Organelle Assembly Line

 Background​ Proteins are made in cells in a complex system. A protein is a long sequence of amino acids. There are twenty different amino acids used in nature; different sequences give different proteins. The sequence is encoded in DNA, with a set of three bases signalling a specific amino acid. The sequence is transcribed into mRNA (messenger RNA), and passed to a ribosome. The ribosome then assembles the protein, using rather shorter tRNA (transfer RNA) to select the right amino acid. Evolution​ How could such a complex system possibly evolve? The simple answer is that we do not know. This is something that happened maybe 4 billion years ago, and by its nature will not leave any fossils. However, the theory of evolution is real science, so real scientists are looking at how it might have happened. I present here a number of science papers that discuss how the organelle assembly line could have evolved. Real Science​ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1894784 We describ...