Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

Male Sex Chromosome Losing Genes By Rapid Evolution, Study Reveals
Science Daily ^ | 7/17/09

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 ...


TOPICS: Health/Medicine; History; Science
KEYWORDS: dna; evolution; genetics; godsgravesglyphs; males; scientists
Navigation: use the links below to view more comments.
first previous 1-2021-37 last
To: shineon

I’ve been trying to completely disappear for a long time, but it’s not working out well for me.


21 posted on 07/18/2009 10:09:28 AM PDT by shineon
[ Post Reply | Private Reply | To 20 | View Replies]

To: shineon

Odd choice of words, hysteria, given the context of this thread. We may have no alternative in a few million years.


22 posted on 07/18/2009 10:09:30 AM PDT by RegulatorCountry
[ Post Reply | Private Reply | To 20 | View Replies]

To: steve-b
“...but we also know that most of the genes were not important for survival because they were lost.”

“...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.

23 posted on 07/18/2009 10:30:25 AM PDT by FreedomNotSafety
[ Post Reply | Private Reply | To 1 | View Replies]

To: shineon

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.


24 posted on 07/18/2009 10:50:48 AM PDT by yefragetuwrabrumuy
[ Post Reply | Private Reply | To 15 | View Replies]

To: exist
This explains Charlie Crist.

And the whole phenomena of "metrosexualism".
25 posted on 07/18/2009 10:55:41 AM PDT by Signalman
[ Post Reply | Private Reply | To 2 | View Replies]

To: yefragetuwrabrumuy

I enjoyed your post. I wish there were more serious ones like these on the internet.


26 posted on 07/18/2009 10:56:12 AM PDT by shineon
[ Post Reply | Private Reply | To 24 | View Replies]

To: exist

'nuff said.

27 posted on 07/18/2009 11:41:46 AM PDT by martin_fierro (< |:)~)
[ Post Reply | Private Reply | To 2 | View Replies]

To: MyTwoCopperCoins
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.

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.

28 posted on 07/18/2009 12:08:11 PM PDT by Repeal 16-17 (Let me know when the Shooting starts.)
[ Post Reply | Private Reply | To 4 | View Replies]

To: steve-b

wouldn’t that be de-evolution ?


29 posted on 07/18/2009 12:28:05 PM PDT by stylin19a (Obama's Plan B - Payday Loans)
[ Post Reply | Private Reply | To 1 | View Replies]

To: StayAt HomeMother; Ernest_at_the_Beach; 1ofmanyfree; 21twelve; 24Karet; 2ndDivisionVet; 31R1O; ...

· join list or digest · view topics · view or post blog · bookmark · post a topic ·

 
Gods
Graves
Glyphs
To all -- please ping me to other topics which are appropriate for the GGG list.
GGG managers are SunkenCiv, StayAt HomeMother, and Ernest_at_the_Beach
 

·Dogpile · Archaeologica · ArchaeoBlog · Archaeology · Biblical Archaeology Society ·
· Discover · Nat Geographic · Texas AM Anthro News · Yahoo Anthro & Archaeo · Google ·
· The Archaeology Channel · Excerpt, or Link only? · cgk's list of ping lists ·


30 posted on 07/19/2009 7:07:28 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/__Since Jan 3, 2004__Profile updated Monday, January 12, 2009)
[ Post Reply | Private Reply | To 1 | View Replies]

To: steve-b

“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.”

http://www.youtube.com/watch?v=wMPa7LOosSE


31 posted on 07/19/2009 8:52:04 PM PDT by 668 - Neighbor of the Beast (Lady Liberty is Kitty Genovese, right outside our windows.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: steve-b

Why are we Deteriorating? Isn’t that kind-of the reverse of what we have in mind (picture thinking) when we were taught evolution?

Oops I forgot, it’s directionless.

Except in the unobservable past when it’s direction was IMPROVING.


32 posted on 07/24/2009 6:51:43 AM PDT by SeekAndFind
[ Post Reply | Private Reply | To 1 | View Replies]

To: steve-b

For RINOs, its more like a “Why?” chromosome.


33 posted on 07/27/2009 9:22:45 AM PDT by editor-surveyor (The beginning of the O'Bummer administration looks a lot like the end of the Nixon administration)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Perdogg
"In order to compensate, nature would have to develop hermaphrodites capable of self reproduction in order to keep the species going."

Are you saying that RINOs are worms?

34 posted on 07/27/2009 9:24:40 AM PDT by editor-surveyor (The beginning of the O'Bummer administration looks a lot like the end of the Nixon administration)
[ Post Reply | Private Reply | To 7 | View Replies]

To: steve-b
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

Then it becomes the 'Z' chromosone, correct?

35 posted on 07/27/2009 9:26:01 AM PDT by Just another Joe (Warning: FReeping can be addictive and helpful to your mental health)
[ Post Reply | Private Reply | To 1 | View Replies]

To: steve-b
RINOs are an evolutionary branch that has already reached the point of complete Y chromosome atrophy.

Y'know, since you frame it that way, I could almost start believing in evolution.

36 posted on 07/27/2009 9:28:37 AM PDT by Titus Quinctius Cincinnatus (We bury Democrats face down so that when they scratch, they get closer to home.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: stylin19a
wouldn’t that be de-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.

37 posted on 07/27/2009 2:53:30 PM PDT by metmom (Welfare was never meant to be a career choice.)
[ Post Reply | Private Reply | To 29 | View Replies]


Navigation: use the links below to view more comments.
first previous 1-2021-37 last

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson