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Whether or not it would be possible to drive the kind of protein machinery that you see in modern cells, like an ... that makes the energy currency o… - Nick Lane
" "Whether or not it would be possible to drive the kind of protein machinery that you see in modern cells, like an ... that makes the energy currency of life... If it were just sitting there in a in a vent, can work out whether the natural... ion gradients in these vents would be... powerful enough to drive this machine to work. ...[Y]ou need to know what are the substrates, what are... the materials that it needs to operate? Where are they coming from? What's the concentration of them? You realize that you have no answer to any of those, and then what's the product? Well, it disappears off somewhere else, as well. So how can selection act if you've got stuff coming in from some unknown place and the product leaving to some unknown place? It made me realize that cellularization is important as a way of keeping the inside in and in keeping the outside out, and so I now have problems with the idea of seeing the entire vent as a kind of a living system.
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About Nick Lane
(born 1967) is a British and writer. He is a professor in evolutionary at University College London. He has published five books to date which have won several awards.
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Additional quotes by Nick Lane
[M]ost of what I teach and interact with the students is more about life on earth and the principles governing evolution, and from my own point of view, the biochemical side, which is not normally part of the evolutionary biology... [I]t's relatively rare for me to discuss life elsewhere in the Universe with them.
[Why a cell vs a gene or partial gene?] There's been plenty of work done on RNA replicators and they have a tendency to become smaller and simpler and effectively better able to make copies of themselves with whatever you provide them in the environment, and they end up with a thing called , which is basically the binding sequence of the which allows it to furiously replicate away. ...If you're providing in the environmwent an RNA polymerase and an infinite supply of s then... they become simpler and simpler, and faster and faster at copying. ...The trouble is there isn't ever going to be an environment that's providing that for you except in a cellular context... If you're selecting at the level of genetic replication, the replicators that are better able to make copies of themselves fast are those which are, in effect, the most selfish and the least likely to cooperate to try and convert the environment into .
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