Is the mechanism for evolution entirely understood?

Subject: Is the mechanism for evolution entirely understood?

Date: Thu Jan 11 12:43:19 2001
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Area of science: Evolution
ID: 979234999.Ev

Message:


I have read that random genetic mutation keeps replenishing the gene pool 
so as to cope with constant change in environment. Lifeforms are so well 
adapted to environment that is it possible that DNA is subtly changed 
throughout life to accomodate this and pass it on in reproduction, whilst 
a persons cellular DNA is apparently fixed for life, what if the DNA 
coding in a males sperm are subtly changed throughout life  according to 
environmental change - climate,diet,etc. I am asking this because current 
theories of evolution do not seem to totally explain life being so 
adaptable.

Re: Is the mechanism for evolution entirely understood?

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