Quote:
Originally posted by Colin
Right, it's a probability.
If a gene is in just one of your parents then you have about a 50% chance of receiving that gene minus about a one in a million chance of a mutation. If both parents have the gene you have a 100% - 1 in a million chance of mutation of receiving that gene.
If a population has a number of organisms with Gene A and Gene B and Gene A organisms have a better chance of surviving than the Gene B organisms then the chances increase that both of your parents carried the gene.
Overall, this leads to a greater probability of Gene A being passed to the next generation and for a group of organisms you will find that Gene A increased its frequency in the next generation.
Would you agree with that?
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Yes I agree with that.
Let's take for example being in a theatre and their is a fire. The smart guy runs for the exit door first....everybody else gets burned alive and dies.
Now, will this "gene" of avoiding fire be passed on since it is what allowed the smart guy to adapt to the situation rather than die? No, there is no evidence for this.
You see what I'm saying. We can isolate certain facts and twist them to suit our theory while ignoring other ones that contradict it.