Skip to comments.Male Sex Chromosome Losing Genes By Rapid Evolution, Study Reveals
Posted on 07/18/2009 9:31:08 AM PDT by steve-b
Scientists have long suspected that the sex chromosome that only males carry is deteriorating and could disappear entirely within a few million years, but until now, no one has understood the evolutionary processes that control this chromosome's demise. Now, a pair of Penn State scientists has discovered that this sex chromosome, the Y chromosome, has evolved at a much more rapid pace than its partner chromosome, the X chromosome, which both males and females carry.
This rapid evolution of the Y chromosome has led to a dramatic loss of genes on the Y chromosome at a rate that, if maintained, eventually could lead to the Y chromosome's complete disappearance....
(Excerpt) Read more at sciencedaily.com ...
This explains Charlie Crist.
LOL! Richard Burr ...
“Even though some of the genes appear to be important, we still think there is a chance that the Y chromosome eventually could disappear,” said Makova. “If this happens, it won’t be the end of males. Instead, a new pair of non-sex chromosomes likely will start on the path to becoming sex chromosomes.”
been saying for some time that men nowadays especially left wing men are girlie.
I just hope that my daughter will be able to find a guy who is a man when she gets older and not some tip toeing tulip skipper.
Even look around at the men who fought in the second world war and then look at the young men say in Boston.
one is manly the other cares more about how his nails looks, his hair looks and thinks he can give a finger to others while in his car but gets all upset if he is confronted with a promise to break that finger if he ever does it again
Both responses are ironic in that they both played football at Wake Forest.
So, by admission, science is saying that males are more evolved. This is borne out anthropologically, in other observations, such extended childhood development, long a known trait of species with higher intelligence.
But, in a genuflection before political correctness, this evolution is interpreted as actually not a beneficial mutation, leading to the extinction of males.
You just can’t make this crap up. Round and round it goes.
Wishful thinking to get more man-hating feminazis to read the article.
How funny! A boy from my high school class went to Wake Forest on a football scholarship: T.J. Morgan. He’s be past the age for football by now, of course ...
This needs to be put in context with DNA as a whole. That is, there are some fairly primitive creatures, like some worms, that have far more chromosomes than do more advanced animals and man, but beyond a developmental point, a culling process is used to eliminate “extra” chromosomes.
The logic to this is straightforward. Having more chromosomes means that an organism is more adaptable, but it is harder for it to reproduce its DNA in its offspring. So it’s a trade off.
People probably have too many chromosomes, with the Y chromosome being on the weak end, so it is fading away. Importantly, there is a fairly common genetic problem with the X chromosome as well, called “Fragile X Syndrome”, which might result in it becoming the replacement Y chromosome, while another chromosome takes its place. Literally, an “arm” of the X chromosome could “fall off”, leaving it to look like a Y chromosome.
"Lift up your eyes to the sky, Then look to the earth beneath; For the sky will vanish like smoke, And the earth will wear out like a garment And its inhabitants will die in like manner; But My salvation will be forever, And My righteousness will not wane."Isaiah 51:6
Next the “W Factor” so beloved of birds. With them the Females do all the sex selecting and designating.
Here are some traits that are not going away.
I forgot to mention the ability to enjoy a good cup of coffee.
Scientists have long suspected that the sex chromosome that only males carry is deteriorating and could disappear entirely within a few million years,
Based on this Barack Obama will declare a crises and claim that health care legislation passed THIS WEEK to solve this problem before it is to late.....
Y oh y is that happening to me?
Leave me alone, I just want to sit back and enjoy the hysteria.
I’ve been trying to completely disappear for a long time, but it’s not working out well for me.
Odd choice of words, hysteria, given the context of this thread. We may have no alternative in a few million years.
“...some of the surviving genes on the Y chromosome may be essential, which can be inferred because these genes have been maintained for so long.”
By what leap of logic can they assume that lost genes are unimportant and retained genes are important?
But never mind because we have this “Even though some of the genes appear to be important, we still think there is a chance that the Y chromosome eventually could disappear,”
Say what? This article and the underlying research(if this article accurately reflects the research)is utter nonsense. Notice there is no actual proof that there was a X Y split. That is there are no examples of humans ever not having x y chromosomes. The researchers assume this split since there are other mammals that do not have it. Having assumed the split by accepting the assumption that all mammals were at one time had the same chromosomes they go on to the logical assumption that the X and Y chromosomes started with the same number of genes.
Since modern man's Y chromosome has less genes than his X chromosome the genes can assumed to have been lost. Since man has survivied then the logical assumption is that the genes were not important.
And since most of the genes have been lost it is logical to assume that the rest will be lost as well. But oh well, some other chromosome will play that roll...right?
This distorts Darwinian evolution beyond recognition and comprehension.
I wouldn’t suggest that those traits would go away.
It may be very hard to guide a fertilized egg to make a boy or a girl, but it is extremely hard, and takes a lot of chromosomes, to help create the foundations for their character. And even that doesn’t come close to the degree of difficulty of years of training, teaching, guiding and criticism that leads to a person who has character.
They didn’t say that life would be easy.
I enjoyed your post. I wish there were more serious ones like these on the internet.
In other words, if this happens another chromosome would replace the Y chromosome and do the same job. So there's no need to worry.
wouldn’t that be de-evolution ?
To all -- please ping me to other topics which are appropriate for the GGG list.
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“But if you must go, mmmm, I won’t tell ya no,
Just so that we can say we tried.
Tell me you love me for a million years.
Then if it don’t work out...
Then you can tell me goodbye.”
Why are we Deteriorating? Isnt that kind-of the reverse of what we have in mind (picture thinking) when we were taught evolution?
Oops I forgot, its directionless.
Except in the unobservable past when it’s direction was IMPROVING.
For RINOs, its more like a “Why?” chromosome.
Are you saying that RINOs are worms?
Then it becomes the 'Z' chromosone, correct?
Y'know, since you frame it that way, I could almost start believing in evolution.
Evolutionists keep telling us that evolution is the addition of information.
As far as I know, they claim that de-evolution isn't occurring.
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