83
edits
Changes
Jump to navigation
Jump to search
Line 70:
Line 70: +
→Mutations don't lead to evolution? New genetic information?
::::: Lenski's research involved bacteria going through about 44,000 generations before he got ''one'' that he could claim was novel (not that it truly was). Humans, if they evolved from apes, must have had ''thousands'' of information-gaining mutations, and there's been nowhere enough time for that to happen (44,000 generations is about one million years). And with sexual reproduction there's only a 50% chance that any beneficial mutation will be passed on anyway! (See [http://creationontheweb.com/content/view/5827 here] for more on that.)
::::: Lenski's research involved bacteria going through about 44,000 generations before he got ''one'' that he could claim was novel (not that it truly was). Humans, if they evolved from apes, must have had ''thousands'' of information-gaining mutations, and there's been nowhere enough time for that to happen (44,000 generations is about one million years). And with sexual reproduction there's only a 50% chance that any beneficial mutation will be passed on anyway! (See [http://creationontheweb.com/content/view/5827 here] for more on that.)
::::: [[User:Philip J. Rayment|Philip J. Rayment]] 10:10, 30 October 2008 (EDT)
::::: [[User:Philip J. Rayment|Philip J. Rayment]] 10:10, 30 October 2008 (EDT)
::::::I was not stopping the mutations there, nor "systematically" trying them all. In a large populations over a large period of time the improbable is possible, all combinations might arise. Mutations can arise on top of each other, but given the occurrence rate of mutations and the size of most genomes, mutations happening in the same gene aren't likely (but yes, they do happen! improbable is not impossible!). As for whether or not the sentence made sense in context, the changing of one base pair in a gene isn't the same as changing a letter in a sentence. It might be my fault for trying to use an example to make things simpler, but addition before algebra. I'm not sure what you mean by the "context" a protein might find itself in, but a single amino acid change can do a lot or a little. Changing the hydrophobicity for example can make it more or less effective at what it does, but not necessarily take it "out of context". And before we start discussing on the accumulation of mutations, just how much time are you talking about here for age of the earth? --[[User:Rainedaye|Rainedaye]] 21:11, 2 November 2008 (EST)
== KathrynMonroe's edit ==
== KathrynMonroe's edit ==