Faizal_Ali
August 21, 2019, 9:52pm
23
stcordova:
For helicase, the copies must connect to each other nicely, and then be just the right size so that can wrap around DNA, and one other thing, it needs a place where ATP can dock to power the this “motor” like device. Then there are the connecting locations, somewhat like the way things are made to snap together. The complex seems to require foresight and planning, because life needs more than quaternary structure that just makes a pretty hexagon-like structure, the hexagonal structure has interact with Atp and DNA like a machine that is methodically unzipping the DNA as in the above video.
The law of large numbers precludes a Urey-Miller soup followed by random polymeraization as an explanation for the formation of helicase-like proteins where there are identical copies of polypeptides about 1000 amino-acids long. The odds of this happening is like shuffling decks of cards randomly and getting the same sequence 6 times in a row. The odds are astronomical.
One might of course invoke and RNA/DNA world, but this has it’s own problems. If we have a DNA-based genome, it’s unlikely the creature would survive without helicase, and helicase won’t exist without a gene storage mechanism like DNA that contains the blueprint for the helicase polypeptide.
You are assuming that helicase must have arisen in its present form, performing the exact function it now does in the exact same way, from the outset with no precursors.
That is not how evolution works.
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