Showing posts with label Biochemistry. Show all posts
Showing posts with label Biochemistry. Show all posts

Friday, 12 July 2024

Refuting Creationism - LUCA Had Evolved 4.2 Billion Years Ago And Already Suffered From Viral Parasites


A digital representation illustrating how LUCA was already under attack from viruses even at 4.2 billion years ago.
Science Graphic Design
July: LUCA | News and features | University of Bristol

Contrary to the Bible's laughable model of a 10,000-year-old universe consisting of a small flat planet with a dome over it, containing nothing that was unknown to the Bronze Age hill farmers whose best guess became part of the Hebrew creation myth, scientists at the University of Bristol have shown that the last universal common ancestor of all living organisms (LUCA) had evolved within 400 million years of Earth forming some 4.6 billion years ago.

They have calculated that LUCA was about as complex as a prokaryote, had already evolved an immune system and was engaged in an arms race with viruses.

Saturday, 22 June 2024

Unitelligent Design - Using The Theory Of Evolution To Create Better Enzymes


Scientists devise algorithm to engineer improved enzymes - News & Events | Trinity College Dublin

Scientists at Trinity College, Dublin, Ireland have discovered that using the natural algorithm of evolution by natural selection is the best way to improve the efficiency of enzymes in terms of the products of the processes they catalyse.

This begs an embarrassing question for creationists: why can enzymes produced by a perfect designer be improved upon?

The answer of course, is that they weren't designed by a perfect designer; they were designed by a utilitarian evolutionary process in which whatever is better than what went before will be retained and the only reason to improve beyond the sub-optimal that works well enough, is to have some other selectors driving it towards ever greater fitness. There is no 'ideal' nor any process for comparing what is against this idea and trying harder, as there would be if there was an intelligence guiding the process.

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