Science, Year 4, Level M Consider buying goggles and rubber gloves disposable gloves they use in hospitals. The most dangerous thing they will be using household cleaners, but they are chemicals and it would be good to be protected against splashes and spills as well as to build a good habit.
Were Darwin's Galapagos Finches Evolution?
What does happen in a population as the genome reacts to the environment? Darwin looks at the finches on the Galapagos Islands and notices variations in beak size.
He thought that the harder seed in the dry time was causing the beaks of the finches to grow stouter from the use of the part. But what was happening was that natural selection or a long term drought in the islands was causing the seed cases to harden. The heavier beaked finch allele in the genome was favored and the lighter beaked finch allele was not.
The heavier beaked finch became more dominant because it passed on the heavy beak alleles. The heavy beak was not the result of a mutation! It was already an allele in the genome and was just brought out as a result of the environment.
When the rains came back the lighter beak became the more efficient beak and the number of heavy beaks reduced. This is microevolution at its best.
But there was no change in the genome of the finch and certainly no new species has arisen from this. The genome expresses its variety by recombination of the alleles and causing the phenotype to show its wonderful God given types.
But what about mutations then? What are they and how can they be beneficial? Mutations are mistakes in the genetic copying process. They effect one nucleotide base at a time and are called point mutations. Once in every 10, tocopies there is a mistake made. Our bodies have a compare — correct process that is very efficient.
That is equal to a professional typist making a mistake in 50, pages of typescript. The Neo-Darwinists made random mutations the engine of evolution. For mutations to be the driver of the massive amount of information there must be two things true of those mutations.
The mutations must be positive and allow the organism to procreate and pass them on. The mutations must add information to the genome of the organism.
To date no evolutionist has pointed out such a mutation and if they exist they must be exceedingly rare. The smallness of the point mutation is also in question.
Dawkins seems to think that the mutation can be as small as needed to make the hypothesis work, but it appears that one nucleotide base is as small as you can get.
But is that enough? And if that truly does occur will natural selection grab and go with it? In a stable population of organisms each organism must reproduce one of itself to keep the stability of the population.
But we see in nature that animals must produce many more than one for themselves because of the randomness of death. Even elephants produce 5 to 10 offspring to overcome this random noise factor. Some organisms produce thousands or even millions to assure replacing themselves.
Evolutionists want many mutations to occur so positive mutations can be captured by natural selection but a high mutation rate for a population is not good as the overwhelming number of mutations can destroy a population.
Let us also say that this population needs 5 offspring to keep the population stable or 20 percent growth. The survival rate increase would be He was also one of the architects of the Neo Darwinian Theory.
He calculated that most mutations with positive survival values would not survive, and he believed that the answer was many positive mutations. If there were organisms with the mutation their odds would be about 5 out of 8. With with the same mutation their odds would be about 6 out of 7 and with organisms with the same mutation the odds are about even.
What are the odds of organisms having the same point mutation it has to be the same for that particular information to get into the genome in a population? The chances that organisms would have the very same point mutation in the very same nucleotide is 1 in 3.
A mutation almost always involves a loss of information or just a copy of information. They have never added new information to the genome, so it appears that they can never bring that genome added complexity. Are there beneficial mutations?/2 Physics Lab Report Format General Remarks: Writing a lab report is the only way your TA will know what you have done during the lab and how well you have understood the process and the results.
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