Quote:
Originally Posted by GI  >>Things mutate all the time
So they do, but can you give me an example of where a mutation increased the information content of a genome? And please don't say 'downs syndrome' or anything daft like that. It is impossible for a beneficial random mutation to occur over and over again, many, many times in just the right spot, as to add to a previous generation random mutation that has enhanced the fitness of said animal
>>If your talking about the Origin of life on the planet, it took about 1.5 billion years before life began, so imagine running an experiment that long on a planet the size of earth.
OK, well tell me the theory then, tell me how the living cell evolved, and tell me without making massive leaps and saying it just happened that a membrane formed etc etc etc, tell us how please. I don't care how much time you want for it to happen feasibly, just give us the theory. It's not asking a great deal. Please describe how genetic code (not matter or energy) is evolved by mutations.
>>What is your evidence? Other than 'Einstein, Hawkins think/thought so, so did most of the great philosophers and great scientists'. I'm pretty sure they don't have any proof either(maybe Einstein, since he's dead, but I'm sure he is not telling anyone else).
Evidence for what? Are you reading my post correctly? I prompted discussion, did not declare my beliefs or attempt to prove a thing! I don't have any beliefs as such, I'm a proper agnostic - I know I don't know (and that includes your evolution theory), but merely pointed out that great, brilliant people have never dismissed the concept of some 'God', that's all. I'll tell you what I do believe; I believe that Neo-Darwinism is not a satisfactory explanation of mechanism for origin of life and how DIFFERENT species arise.
I don't believe my post(s) are being understood here, I don't have any answers, I don't have any proof and don't claim to have any! I was merely hoping for debate, if you think there is a God then tell me why, if not, then tell me why, I'm just interested. I’m particularly interested in those that categorically claim there is not one, not that I know there is one but that I would be fascinated to hear their reasons on why there is not one! |
sickle cell is a mutation that is deadly when both recessive genes are inherited, but being heterozygous has no personal risk and makes you resistant to malaria. it is true that, for the most part, mutations that occur in we larger organisms are usually not beneficial and can be a hinderance to us. but then again, whether or not a mutation is beneficial depends on our environment. for smaller organisms such as insects, bacteria, and viruses, mutations generally are beneficial. the reason we do not have a cure for cancer or HIV is because they are constantly changing and adapting to their environment. now whether or not the mutation expands the genome of a population depends on if that mutation is passed on to the next generation.
im not sure that i understand this next question. are you asking how a cell changes into an organism, or how DNA is changed by mutation?
what specifically about evolution do you find unsatisfactory? i assume that you would agree that things like mutation, natural selection, and genetic drift can cause a population to change slightly. well over hundreds of generations with hundreds of subtle changes, these organisms would start to look significantly different from what they did hundreds or thousands of years ago. this is how we get different speicies. the basic principle of evolution is the grand canyon did not always look the way it does today, and that what we now see is a result of thousands of years of change.