The best known example for irreducible complexity, and thus for Intelligent Design, in molecular biology ha...
The best known example for irreducible complexity, and thus for Intelligent Design, in molecular biology has become the bacterial flagellum.
Bacterial Flagellum - A Sheer Wonder Of Intelligent Design - video
Biologist Howard Berg at Harvard calls the Bacterial Flagellum
“the most efficient machine in the universe."
The flagellum has steadfastly resisted all attempts to elucidate its plausible origination by Darwinian processes, much less has anyone ever actually evolved a flagellum from scratch in the laboratory;
Genetic Entropy Refutation of Nick Matzke's TTSS (type III secretion system) to Flagellum Evolutionary Narrative:
Excerpt: Comparative genomic analysis show that flagellar genes have been differentially lost in endosymbiotic bacteria of insects. Only proteins involved in protein export within the flagella assembly pathway (type III secretion system and the basal-body) have been kept...
Genetic analysis of coordinate flagellar and type III - Scott Minnich and Stephen Meyer
Molecular machines display a key signature or hallmark of design, namely, irreducible complexity. In all irreducibly complex systems in which the cause of the system is known by experience or observation, intelligent design or engineering played a role the origin of the system.
"One fact in favour of the flagellum-first view is that bacteria would have needed propulsion before they needed T3SSs, which are used to attack cells that evolved later than bacteria. Also, flagella are found in a more diverse range of bacterial species than T3SSs. ‘The most parsimonious explanation is that the T3SS arose later," Howard Ochman - Biochemist - New Scientist (Feb 16, 2008)
Flagellum - Sean D. Pitman, M.D.
For a broad outline of the "Fitness test", required to be passed to show a violation of the principle of Genetic Entropy, please see the following video and articles:
Is Antibiotic Resistance evidence for evolution? - "The Fitness Test" - video
Testing the Biological Fitness of Antibiotic Resistant Bacteria - 2008
List Of Degraded Molecular Abilities Of Antibiotic Resistant Bacteria:
This "fitness test" fairly conclusively demonstrates "optimal information" was originally encoded within a "parent" bacteria/bacterium by God, and has not been added to by any "teleological" methods in the beneficial adaptations of the sub-species of bacteria.
Intelligent Design - The Anthropic Hypothesis