|
Register | Sign In |
|
QuickSearch
Thread ▼ Details |
|
Thread Info
|
|
|
Author | Topic: The race issue | |||||||||||||||||||||||||||||||||
slevesque Member (Idle past 4662 days) Posts: 1456 Joined: |
But then in this case, what you quoted from dennis780 in message 101 isn't inaccurate (although not very specific):
quote: So he had never said it was increase or decrease in one specific type of melanin either. And in fact, your explanation here doesn't fit very well with what you had said in message 101:
quote: Which had given the wrong impression that skin color was the result of what type of melanin you had. If you had 'type A', you were that color. If you had 'type B', you were that color, etc.etc. When in fact it is more like you got 'type A', you are that color. You got 'type A' and 'type B', you are that color. You got 'type A' and B and C, you are that color. etc.etc. Anyhow, details.
|
|||||||||||||||||||||||||||||||||
onifre Member (Idle past 2973 days) Posts: 4854 From: Dark Side of the Moon Joined: |
Then I guess a more specific explanation from dennis is need. What did he mean by "lowest levels" of melanin.
We all have same amount or "levels", just not the same type. I don't see why "lowest" or "more" is needed. It would be more accurate to say that we have different types of melanin that cause different variations in skin pigmentation. Just to note, these different types of melanin also vary the color of hair and eyes, so its not just skin that melanin effects. Also, individual people can have a combination of the different types so they'll vary in not only skin but eye color, hair, etc. A black person can have the dark skin but also have light eyes, produced by having different combinations of melanin types. And vice versa; white people can have different combos producing unique variations in their skin, eyes, hair, etc. To me, it is not accurate nor suffice to simply say, white people have the lowest levels and black people have the most. I was hoping that dennis clarified what he meant though. - Oni
|
|||||||||||||||||||||||||||||||||
New Cat's Eye Inactive Member |
I was hoping that dennis clarified what he meant though. Re-read what he wrote... He was talking about the whole "only a loss of information" thing. If white people did have less melanin and that was a reduction in information then Adam and Eve would have been black because they woulda had so much more melanin.
|
|||||||||||||||||||||||||||||||||
onifre Member (Idle past 2973 days) Posts: 4854 From: Dark Side of the Moon Joined: |
If white people did have less melanin But they don't...that's the point. We all have the same amount of melanin, just different types that produce different features. - Oni
|
|||||||||||||||||||||||||||||||||
New Cat's Eye Inactive Member |
If white people did have less melanin
But they don't...that's the point. We all have the same amount of melanin, just different types that produce different features.
Oh, sure, he's just plain old wrong, but what he meant seemed to be fairly clear.
|
|||||||||||||||||||||||||||||||||
onifre Member (Idle past 2973 days) Posts: 4854 From: Dark Side of the Moon Joined: |
Oh, sure, he's just plain old wrong, but what he meant seemed to be fairly clear. Yeah, that's what I though too, but Wounded King and Slev threw me off with their replies. I thought I made a mistake. I only know of this subject from a book I read about 2 years ago, so WK's opinion esp. I would listen to. - Oni
|
|||||||||||||||||||||||||||||||||
slevesque Member (Idle past 4662 days) Posts: 1456 Joined: |
We all have the same amount of melanin That's the information I'm not sure about. Is that right ? Are you sure it's not a mixt of both different types and different concentrations ?
|
|||||||||||||||||||||||||||||||||
onifre Member (Idle past 2973 days) Posts: 4854 From: Dark Side of the Moon Joined: |
That's the information I'm not sure about. Is that right ? Are you sure it's not a mixt of both different types and different concentrations ? Shit now I'm confused myself. Working from pure memory serves me no good, so this is currently what I could find: Melanogenesisquote: My understand is, it's the different amount or mixture of types of polymers (such as Eumelanin, Pheomelanin or Neuromelanin) that varies the skin pigmentation. So its not that you have more melanin or less melanin, its that you have more of a certain kind of polymer. Maybe a better way to say it is, we all have the same amount of melanocytes just different polymers. Maybe? If someone with more knowledge on this cares to explain it I'm more than willing to be shown where I am wrong. - Oni
|
|||||||||||||||||||||||||||||||||
Wounded King Member Posts: 4149 From: Cincinnati, Ohio, USA Joined: |
I think you have an almost equally over simplified approach as Denis here. Having the same number of melanocytes means nothing, they only produce the melanin so the same number of melanocytes doesn't mean the same amount of melanin.
The only well characterised genetic determinant of skin colour at the moment is the types of Melanocortin1receptor (MC1R) an individual has, and there are over 60 identified human MC1R alleles (Rees, 2004). The article I cite above states ...
Melanin is biosynthesized within melanosomes that, when mature, are passed to the surrounding keratinocytes. Visible skin color is therefore the result of the melanin in keratinocytes but is synthesized in melanocytes. ... Studies of epidermal melanins (rather than hair melanins) are fewbecause they require skin biopsiesbut suggest that those with black skin have 2—3-fold as much melanin as Northern Europeans ... TTFN, WK
|
|||||||||||||||||||||||||||||||||
onifre Member (Idle past 2973 days) Posts: 4854 From: Dark Side of the Moon Joined: |
I think you have an almost equally over simplified approach as Denis here Damn, and here I was thinking I made it too complex.
Having the same number of melanocytes means nothing, they only produce the melanin so the same number of melanocytes doesn't mean the same amount of melanin. Yeah I think I get that now having read it over a few times. So would it be more accurate to say we all have the same amount of melanocytes, we just have different active polymers that result in different skin pigmentation? - Oni
|
|||||||||||||||||||||||||||||||||
dennis780 Member (Idle past 4798 days) Posts: 288 From: Alberta Joined: |
"He was talking about the whole "only a loss of information" thing. If white people did have less melanin and that was a reduction in information then Adam and Eve would have been black because they woulda had so much more melanin."
This is exactly the only point I was trying to get across. If creation is true, then God is the source of all information, so information could only be lost over time. Though mutations can occur, it would be the result of pre-existing information. Adam and eve would have been black. I hope everyone did not read too much into my generalization. I was more interested in making the point that useful information cannot be gained over time. Sorry. Dennis.
|
|||||||||||||||||||||||||||||||||
Coyote Member (Idle past 2128 days) Posts: 6117 Joined:
|
I was more interested in making the point that useful information cannot be gained over time. Sorry.
I'm sorry as well. That is a religious belief that is not confirmed by scientific research. In fact, we see just the opposite. Over the millions of years we see all manner of change, including new information. You may choose to disbelieve this for religious reasons, but that doesn't make it so. Religious belief does not constitute scientific evidence, nor does it convey scientific knowledge.
|
|||||||||||||||||||||||||||||||||
onifre Member (Idle past 2973 days) Posts: 4854 From: Dark Side of the Moon Joined: |
If white people did have less melanin and that was a reduction in information then Adam and Eve would have been black because they woulda had so much more melanin." Why are you choosing to stop at homo-sapiens? Adam and Eve would have been hominids. And why stop at hominids? we can keep going to the common ancestor of all mammals, or all vertibrates. Right? Hominids weren't "black" homo-sapiens, were around much earlier and had different amounts of melanin. This screws your whole theory up. The Biblical creation is clearly disproven by these facts.
If creation is true, then God is the source of all information, so information could only be lost over time. So you're saying *if* YOU'RE version of creation (the christian version I'm assuming) is true...then Adam and Eve were homo-sapiens and black. Ok To quote lyx2no: "*If* worms had machine guns robins wouldn't eff with 'em." If we allow for *if's* nothing is impossible. What does the evidence point to, that's the only thing that matters.
I hope everyone did not read too much into my generalization. I was more interested in making the point that useful information cannot be gained over time. Sorry. No worries. Your ignorance on the subject helped my ignorance on the subject. Thanks. - Oni
|
|||||||||||||||||||||||||||||||||
misha Member (Idle past 4650 days) Posts: 69 From: Atlanta Joined: |
dennis780 writes: Though mutations can occur, it would be the result of pre-existing information Are you saying that the cells that experienced this mutation had pre-existing information that caused the mutation, that all of this information is front-loaded? Or that the mutation changed the existing information into something different? If front-loading, what evidence do you have? If into something different, isn't this the exact thing you are arguing against? In your view, somehow Adam and Eve had the information to construct all 60 alleles of MC1R. Then once again, information for all 60 of these alleles just happened to be found in Noah's 3 sons and their daughters. That is a lot of front-loading for which there is no evidence.
|
|||||||||||||||||||||||||||||||||
dennis780 Member (Idle past 4798 days) Posts: 288 From: Alberta Joined: |
"Pure nonsense. There is just as much carbon 14 at the north and south poles as anywhere else -- it's in the atmosphere!
And C14 dating is not a parent-daughter dating method." I'm refering to the NEWER forms of Parent-Daughter dating, poopdink. Such as K-Ar, Ar-Ar, etc. Carbon levels are constantly changing, since the van allen belt is constantly changing (the belt that traps radiation around the earth...but you knew that right?). And since most all animals get their source of carbon from plants, any area where plants to not exist, would not take carbon from the atomsphere, giving any animals in these areas false readings. This is also true with marine life, and should be called into question as well.
|
|
|
Do Nothing Button
Copyright 2001-2023 by EvC Forum, All Rights Reserved
Version 4.2
Innovative software from Qwixotic © 2024