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originally posted by: Barcs
originally posted by: chr0naut
Yes, every individual organism has a slightly different genome, that's how it works. No organisms are "unmutated." Mutations happen every time a cell replicates or an organism reproduces.
Why would it increase exponentially?
It's a clear example of EVOLUTION, not micro evolution. There is no difference between micro and macro. Evolution is ALL "micro" changes. Every single change is small, the small changes just accumulate.
You are misunderstanding this and how it relates to speciation. No, the branch doesn't always terminate.
Sometimes they are isolated from one another, as demonstrated in the experiment I posted.
I already explained that speciation is a process that takes thousands of generations at bare minimum. You don't have a sudden change of species causing the offspring to be unable to breed with the parent generation.
Changes like that would take a very long time to render breeding nonviable. This is why your point makes no sense to me. There isn't enough genetic change from one generation to the next to speciate. When you look at humans specifically, it's like questioning whether a homo sapien from 200,000 years ago could breed with a human today. It's not about breeding from one generation to the next where you suddenly have a new species in a single generation trying to breed with the old. It doesn't work like that.
Now hold on a minute here. 200 years is not the same as 200 generations
and there is no set speed or rate of speciation.
For European pepper moths, there can be as many at 7-8 generations within a year period depending on the temperature and conditions
, so 200 years would be more like 1400-1600 generations and that's only if you follow the ancestry of one single moth, not factoring in the millions of other moths experiencing genetic mutations and sharing genes.
Unfortunately Raggedy doesn't agree, but I could have told you that on the very first page of this thread. We kind of knew this would happen, regardless of what paper is posted.
Again, there is no such thing as an "unmutated" population. Everything mutates. Your objection here is irrelevant. Of course they were isolated and given slightly different environments, that's the point of the experiment. To show that isolation for enough generations can lead to speciation.
How so? Are you really suggesting that genetic isolation doesn't occur in nature or am I not understanding your point?
This is a fair definition if you put thousands of generations in between ancestor and decedent.
You are right that sometimes minor appearance differences do not always indicate a new species, but it always depends on how far back you trace the lineage. That is the reason why minor differences can breed to the entire population group, it's because they aren't different species.
It's not just mate preference, it's about the compatibility of the genomes to viably combine. You do realize they can combine genes without them directly mating, right?
originally posted by: Noinden
a reply to: Raggedyman
PROVE it was stupid. You also have not read the paper as evidenced by the "WHere does it say new information was added to the genome".
You are not capable of honestly engaging.
originally posted by: Noinden
a reply to: TzarChasm
I am not 100% sure of that either. I am pretty sure he has not read the paper, not even the abstract
I want a peer reviewed journal article dealing with Macro evolution
Again, simply show me scientific peer reviewed evidence of evolution as fact
even chronaut has offered more contribution than mr raggedy. he at least addresses particulars about the subject, for which I have a grudging respect.
originally posted by: Raggedyman
Where does it say new information was added to the genome
At 68°F, it takes about a month and a half for the moth to complete its lifecycle, meaning that 7-8 generations are possible per year at this temperature in year-round greenhouses.
originally posted by: Barcs
originally posted by: Raggedyman
Where does it say new information was added to the genome
It doesn't need to say that because it's obvious. For that you'd really need to look deeper into genetics research to understand genome mapping and how genetic information changes via mutation. This paper on speciation isn't about to give you a genetics 101 course in the conclusion.
I'm over simplifying here, but if you have a sequence ABACCDAB and it changes to ABACABACCDAB (like a duplication mutation), that is a new sequence and could have a different function. The base pairs themselves are the same basic compounds, so when you say "new information", there are no new compounds, just changes to the sequence.
originally posted by: Barcs
a reply to: chr0naut
Dude, man... There is too much wrong with what you just said to even begin addressing it all. Why bring up a butterfly life cycle when you are specifically referring to European Pepper Moths.
If the conditions are right they can have 8 generations per year, if the temperature stays warm. That's the reason these things are considered an invasive species and are a threat to California right now.
At 68°F, it takes about a month and a half for the moth to complete its lifecycle, meaning that 7-8 generations are possible per year at this temperature in year-round greenhouses.
And saying micro evolution doesn't include speciation is absurd. How many times do I have to explain that there is no "micro" evolution.
There is EVOLUTION
and speciation is the result of that over thousands to millions of generations.
originally posted by: Barcs
originally posted by: Raggedyman
Where does it say new information was added to the genome
It doesn't need to say that because it's obvious. For that you'd really need to look deeper into genetics research to understand genome mapping and how genetic information changes via mutation. This paper on speciation isn't about to give you a genetics 101 course in the conclusion.
I'm over simplifying here, but if you have a sequence ABACCDAB and it changes to ABACABACCDAB (like a duplication mutation), that is a new sequence and could have a different function. The base pairs themselves are the same basic compounds, so when you say "new information", there are no new compounds, just changes to the sequence.
originally posted by: chr0naut
Technically, each codon is one of four bases, abbreviated A, C, G & T (not A, B, C & D) and the duplication would functionally consist of a multiple of three bases (codon bias), i.e: it is the minimum unit for amino acid expression or a 'stop' code (TAA, TAG or TGA).
Perhaps I'm being far too pedantic, though.
I was providing support for the order Lepidoptera, to which moths and butterflies both belong, as usually having annual, seasonally linked, life cycles in nature.
Several have posted, in this thread, links to peer reviewed academic articles that explicitly address microevolution vs. macroevolution.
originally posted by: Raggedyman
Actually IT does need to say new information was added to the genome
Otherwise its not evolution but adapting within its own capacity