|
Register | Sign In |
|
QuickSearch
EvC Forum active members: 56 (9187 total) |
| |
Dave Sears | |
Total: 918,737 Year: 5,994/9,624 Month: 82/318 Week: 0/82 Day: 0/3 Hour: 0/0 |
Thread ▼ Details |
|
Thread Info
|
|
|
Author | Topic: Introduction to Genetics | |||||||||||||||||||||||||||||||||||||||||||
Faith  Suspended Member (Idle past 1608 days) Posts: 35298 From: Nevada, USA Joined: |
There is WAY too much going on in this thread now. I'm still back trying to deal with Taq's earlier post, and though it seems you are trying to help with that you've mostly given me more problems to sort out.
I don't think we've got to a point where mutations ought to be the topic. I'm still trying to understand some of the comparisons Taq's post described between humans and chimps, just descriptions of facts in the genome. Thanks to you and N.Ned at least for agreeing that it is not necessary to use evolutionist language in describing comparisons between species. =============ABE: Aaaaagh! Could we please have a moratorium on bringing up anything new on this thread? I'm struggling through posts way back there already, there are unexpected miscommunications as usual to complicate things, and I'm afraid I've already lost track of some issues I'd really like to understand better. Edited by Faith, : No reason given.
|
|||||||||||||||||||||||||||||||||||||||||||
Faith  Suspended Member (Idle past 1608 days) Posts: 35298 From: Nevada, USA Joined: |
(dwise) Can it be said that a single pair of organisms possess a vast amount of genetic variability? Or any individual? Or isn't it that you need to have a population in order to compare the individual genomes of its members to determine how much those individual genomes vary with each other? (Taq) Depends on the species and the paif of organisms. A pair of human, identical twins will have nearly identical genomes and near zero variability. A pair of random humans with no recent common ancestor will have much more variability between them. A random set of chimps will have even more variability between them. A random pair of cheetahs will have very little variability because they went through a recent genetic bottleneck. Yes, thank you!.
For the Ark scenario, it can not be said that just 2 individuals can have the same genetic variability as a population. For example, some of the MHC genes have thousands of alleles in the human population. Each person only carries 2 alleles. A pair would only have 4 alleles between them. Not the same variability as a population, no, and I am aware that an explanation is needed for the many alleles in the population for some genes (ABE: though I have no idea what MHC refers to), which could not have existed on the ark. But on the ark there could have been four different alleles for each pair or couple for many more genes than would have that many alleles today, though I'd have to suppose some attrition since the Fall, AND I'm sure this won't sit well, but if what is now junk DNA or pseudogenes was functioning DNA in the people and creatures on the ark, which I think very likely, then there would have been as much as 95% more genetic variability through that source than exists today.
The only way around that is if those ark pairs were extreme polyploids, carrying thousands of copies of the genome each. Not likely of course, so some other explanation is needed. Perhaps some form of mutation then. Edited by Faith, : No reason given. Edited by Faith, : No reason given. Edited by Faith, : No reason given.
|
|||||||||||||||||||||||||||||||||||||||||||
herebedragons Member (Idle past 1021 days) Posts: 1517 From: Michigan Joined: |
There is WAY too much going on in this thread now. I understand.
it seems you are trying to help with that you've mostly given me more problems to sort out. If the very basics are giving you more problems, then that is where you should start. The stuff I brought up in my two posts are the kind of things that would be covered in the first week of a genetics course.
I don't think we've got to a point where mutations ought to be the topic. But that is exactly what you are trying to discuss with Taq. You are putting the horse before the cart. You need to know how mutations can accumulate in a gene and what effect they can have. Without that, it will continue to appear to you that Taq is just using evolutionary assumptions.
Thanks to you and N.Ned at least for agreeing that it is not necessary to use evolutionist language in describing comparisons between species. Not exactly what I meant. There is hardly any way you can discuss chimp / human relationship without using "evolutionist" language. The reason is that human /chimp relatedness is a conclusion based on the evidence. What you need to learn is why we think those things ARE evidence.
Aaaaagh! Could we please have a moratorium on bringing up anything new on this thread? Whatever. This is Introduction to Genetics. If you have all the basics down that I put in my post, then fine, I have wasted your time. However, if those principals confuse you, then you should try to grasp them before you move on and try to understand why and how we use genetic similarity to infer relatedness. HBDWhoever calls me ignorant shares my own opinion. Sorrowfully and tacitly I recognize my ignorance, when I consider how much I lack of what my mind in its craving for knowledge is sighing for... I console myself with the consideration that this belongs to our common nature. - Francesco Petrarca "Nothing is easier than to persuade people who want to be persuaded and already believe." - another Petrarca gem. Ignorance is a most formidable opponent rivaled only by arrogance; but when the two join forces, one is all but invincible.
|
|||||||||||||||||||||||||||||||||||||||||||
Faith  Suspended Member (Idle past 1608 days) Posts: 35298 From: Nevada, USA Joined: |
No no no no no no no. Not mutations yet, let's just stick to what had already been brought up. And I'm sorry you didn't mean what I thought you meant about evolutionist language.
|
|||||||||||||||||||||||||||||||||||||||||||
RAZD Member (Idle past 1568 days) Posts: 20714 From: the other end of the sidewalk Joined:
|
No, I guess I need to say it every time it comes up, I do not regard speciation as macroevolution, it is an event that does occur though so I keep the name for it, but it is merely a population, a race, of a particular species that has lost its ability to interbreed with others of that species, probably most often due to changes in the genome. And the kicker is that it should have less, little or no ability to vary further, making it an odd misnomer within the ToE anyway. And once again, the only one you deceive is yourself: scientists and scientifically literate know that this is the scientific definition for macroevolution. If you want to invent a new word, you can make up something for your fantasy version that you keep denying occurs. Curiously I find it amusing that the longer these debates go, the more creationists accept basic evolutionary processes, especially if they can call them something else ... It's like it's not evolution per se that is denied, just the words used by evolutionary scientists ... by our ability to understand Rebel American Zen Deist ... to learn ... to think ... to live ... to laugh ... to share. Join the effort to solve medical problems, AIDS/HIV, Cancer and more with Team EvC! (click)
|
|||||||||||||||||||||||||||||||||||||||||||
Faith  Suspended Member (Idle past 1608 days) Posts: 35298 From: Nevada, USA Joined: |
Insisting on definitions does not belong on this thread. I'm a creationist and I have a different way of understanding the data than you do and your attempt to force it down my throat is unwelcome, especially on this thread.
Edited by Faith, : No reason given. Edited by Faith, : No reason given.
|
|||||||||||||||||||||||||||||||||||||||||||
New Cat's Eye Inactive Member
|
I'm a creationist and I have a different way of understanding the data than you do and your attempt to force it down my throat is unwelcome, especially on this thread. Then stay out of the Science forums.
Get off this thread. No, you!
|
|||||||||||||||||||||||||||||||||||||||||||
AZPaul3 Member Posts: 8630 From: Phoenix Joined: Member Rating: 5.3
|
Again, Faith, this is beneath you.
You yourself have given us nothing but interpretations of things and demonstrably false interpretations at that. You have no call to accuse anyone else of anything when you act in this way.
|
|||||||||||||||||||||||||||||||||||||||||||
RAZD Member (Idle past 1568 days) Posts: 20714 From: the other end of the sidewalk Joined: |
Insisting on definitions does not belong on this thread. I'm a creationist and I have a different way of understanding the data than you do and your attempt to force it down my throat is unwelcome, especially on this thread. Get off this thread. Curiously I am not insisting on definitions, just pointing out that when you use a word that is commonly understood to mean something else then you are not communicating clearly, and then you end up complaining later about how people don't understand your points. So you now concede that both microevolution and speciation occur as part of the natural world post flood ... wonderful. The theory of evolution can be stated as the theory that microevolution and speciation are sufficient to explain the diversity of life as we know it. You are well on your way -- here and on some of the other threads -- to demonstrating that you believe this is sufficient to explain the diversity of life since the flood. As I said, you are being forced by reality to either acknowledge basic evolution or deny reality.
Get off this thread. Funny.
Message 94: ... Not mutations yet, let's just stick to what had already been brought up. ... ANY change to DNA is a mutation, so you are well into mutations already. Baulking at words that describe what you have been describing is not argument but denial. Just look at your aversion to the word "divergence" in [msg=719395] ... most amusing the length you went to. But if you want to discuss Message 116 I'll be glad to leave you along here. by our ability to understand Rebel American Zen Deist ... to learn ... to think ... to live ... to laugh ... to share. Join the effort to solve medical problems, AIDS/HIV, Cancer and more with Team EvC! (click)
|
|||||||||||||||||||||||||||||||||||||||||||
Faith  Suspended Member (Idle past 1608 days) Posts: 35298 From: Nevada, USA Joined: |
I did remove the militant "Get off this thread" at least.
"Macroevolution" in relation to speciation is an artificial definitional ploy. The actual FACT of speciation is merely that a subspecies has acquired the inability to interbreed with others of that species. That's the simple fact and to insist on it is NOT to give an alternative (creationist) interpretation, but merely to insist on correct factual description. I can't do the same with "speciation" because in that case it does describe something that actually happens so it would cause confusion to insist on the falseness of the definition, so I'm stuck with simply having to write out my view of it every time if I want to avoid the usual objections.
|
|||||||||||||||||||||||||||||||||||||||||||
herebedragons Member (Idle past 1021 days) Posts: 1517 From: Michigan Joined:
|
Message 94: ... Not mutations yet, let's just stick to what had already been brought up. ...
ANY change to DNA is a mutation, so you are well into mutations already. Baulking at words that describe what you have been describing is not argument but denial. I know. Let's talk about human / chimp relatedness but don't bring up mutations and don't use evolutionary language. Talk about stacking the deck. HBDWhoever calls me ignorant shares my own opinion. Sorrowfully and tacitly I recognize my ignorance, when I consider how much I lack of what my mind in its craving for knowledge is sighing for... I console myself with the consideration that this belongs to our common nature. - Francesco Petrarca "Nothing is easier than to persuade people who want to be persuaded and already believe." - another Petrarca gem. Ignorance is a most formidable opponent rivaled only by arrogance; but when the two join forces, one is all but invincible.
|
|||||||||||||||||||||||||||||||||||||||||||
RAZD Member (Idle past 1568 days) Posts: 20714 From: the other end of the sidewalk Joined:
|
I know. Let's talk about human / chimp relatedness but don't bring up mutations and don't use evolutionary language. Talk about stacking the deck. Well of course, and she'll be happy to talk about change but not mutation ... or speciation but not macroevolution ... by our ability to understand Rebel American Zen Deist ... to learn ... to think ... to live ... to laugh ... to share. Join the effort to solve medical problems, AIDS/HIV, Cancer and more with Team EvC! (click)
|
|||||||||||||||||||||||||||||||||||||||||||
herebedragons Member (Idle past 1021 days) Posts: 1517 From: Michigan Joined:
|
It does highlight the importance of how we use words and the trouble that brings to these debates. While macroevolution means something specific to you and me, it has completely different implications for creationists. It is also why these debates often end up centering on semantics, because the implications of the words we use are often as important as the definitions themselves. I have been trying to bring it down to basics and try to leave out terminology that could be conflicting, but it is still not much help. People can usually sense when they are being backed into a corner.
HBDWhoever calls me ignorant shares my own opinion. Sorrowfully and tacitly I recognize my ignorance, when I consider how much I lack of what my mind in its craving for knowledge is sighing for... I console myself with the consideration that this belongs to our common nature. - Francesco Petrarca "Nothing is easier than to persuade people who want to be persuaded and already believe." - another Petrarca gem. Ignorance is a most formidable opponent rivaled only by arrogance; but when the two join forces, one is all but invincible.
|
|||||||||||||||||||||||||||||||||||||||||||
Faith  Suspended Member (Idle past 1608 days) Posts: 35298 From: Nevada, USA Joined: |
Curiously I am not insisting on definitions, just pointing out that when you use a word that is commonly understood to mean something else then you are not communicating clearly, and then you end up complaining later about how people don't understand your points. Speciation is not macroevolution and it isn't necessary to use that term. It's also not speciation either but I can't see a way to change that term, so I'll just have to keep writing out my view of it.
So you now concede that both microevolution and speciation occur as part of the natural world post flood ... wonderful. There is no concession involved; I've viewed it this way for years and I'm sure I must have said so years ago already even here.
The theory of evolution can be stated as the theory that microevolution and speciation are sufficient to explain the diversity of life as we know it. You are well on your way -- here and on some of the other threads -- to demonstrating that you believe this is sufficient to explain the diversity of life since the flood. Except that there is nothing new about my view of these things, and speciation is not speciation, and there are many subspecies that belong to that diversity that aren't the product of speciation.
As I said, you are being forced by reality to either acknowledge basic evolution or deny reality. Sorry but you completely misunderstand my point of view. I will apologize for telling you to get off the thread though. Just the usual temper flare I have to curb.
Message 94: ... Not mutations yet, let's just stick to what had already been brought up. ... ANY change to DNA is a mutation, so you are well into mutations already. Baulking at words that describe what you have been describing is not argument but denial. It is important that I use words that say what I mean and avoid sounding like I agree with evolutionist concepts I don't agree with. It is not an easy task to negotiate these differences between the models, ABE: especially in the teeth of the militant insistence on evolutionist terms as factual, which they are not /ABE. In the case of mutations, I do NOT agree that alleles are the product of mutations, they are built in variants of genes, built in from the Creation. Mutations hardly ever, and probably in actuality never, create viable alleles that perform the functions of normal alleles. Mutations may manage not to destroy their function, that is, they may be "neutral," or they may be many degrees of deleterious to the gene, or they might even bring about the death of a gene, which I think is how some of the junk DNA was formed (though I think most of it reflects the mass death of the Flood bottleneck), and the mere assumption that any allele was the product of mutation should be avoided on this thread. If there is some reason to assert it then it should be asserted and not assumed. But most of the time I don't see that there would be any reason to assert it at all. The idea that there is EVIDENCE that alleles are the product of mutation is false, but if someone wants to defend that then it should come up when we finally get to mutations. Although it is going to be necessary to discuss mutations on this thread eventually, it ought to be possible to describe allelic variants simply factually or descriptively without involving the interpretation that they were created by mutations.
Just look at your aversion to the word "divergence" ... most amusing the length you went to. I'm not amused. "Divergence" is an evolution-specific word. Simple factual comparisons of differences between the genomes of different species are all that's needed on this thread. Edited by Faith, : No reason given.
|
|||||||||||||||||||||||||||||||||||||||||||
Faith  Suspended Member (Idle past 1608 days) Posts: 35298 From: Nevada, USA Joined: |
I know. Let's talk about human / chimp relatedness but don't bring up mutations and don't use evolutionary language. Talk about stacking the deck. I would like to point out again, and insist on it, and hope you will give it some careful thought, that all I'm asking for is simple straightforward factual descriptive terminology. That is NOT stacking the deck from my side at all, it is a completely neutral way of discussing the material at hand. What IS stacking the deck is the evolutionists' use of INTERPRETIVE terminology. Please think about it: "Macroevolution" is an interpretation, it is not a simple factual description of what has actually occurred. "Speciation" is an interpretation, it is not a simple factual description of the fact that a subspecies has simply become unable to interbreed with its parent species. "Divergence" is an interpretation, not a simple factual description of the differences between chimp and human DNA. "Mutation" as used in many contexts is also an interpretation, an assumption, when it implies that it produced all the known functioning alleles. All these terms are tendentious and interpretive, and all I'm asking for is neutral descriptive factual terms. Edited by Faith, : No reason given.
|
|
|
Do Nothing Button
Copyright 2001-2023 by EvC Forum, All Rights Reserved
Version 4.2
Innovative software from Qwixotic © 2024