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While the mammalian Y chromosome (males only) may be much smaller than the X chromosome that predominates in females (males have one X, females two), this males only chromosome is evolving much faster. As a result male primates were found to be evolving faster than females.  (Source: Nature.com)
The Y chromosome is evolving fast to deal with genetic pressures of varying mating habits, such as chimp group mating

Modern biochemistry and genetics is just beginning to unlock the complex secrets of evolution, the process in which organisms change over long periods of time through random genetic variation and selective pressures.  With a handful of genomes sequenced, scientists can now start mining this data to find interesting trends and evidence of the course evolution is taking, particularly in humans.

A provocative and intriguing new study reveals that past thought on the Y chromosome, the chromosome that instructs mammals to develop into males, may be entirely flawed and that the chromosome, previously thought to evolving at a crawl, may in fact be evolving far faster than other chromosomes.  Human females typically have two X chromosomes, while males have an X and a Y chromosome.

It was previously thought that autosomes (non-sex chromosomes) and the X sex chromosome featured greater diversity (faster evolution) than the Y sex chromosome, a smaller chromosome.  According to the new study, led by Jennifer Hughes, a postdoctoral researcher in Whitehead Institute Director David Page’s lab.  The research indicates that primate males may be evolving significantly faster than females.

To determine how fast the Y chromosome was changing, the scientists needed a point to compare our Y chromosomes against.  The human Y chromosome had been comprehensively sequenced by the Page lab and the Genome Center at Washington University in 2003.  A promising target was DNA from chimpanzees -- a close relative of humans on the evolutionary tree.  However, the 2005 sequencing of the chimpanzee genome excluded the Y chromosome, mostly, due to its hundreds of repeating sequences that threw off sequencing techniques at the time.

Undeterred, researchers at the Page lab and Genome Center at Washington University completed sequencing the chimpanzee Y chromosome, using newer techniques.  What was discovered was amazing.  The Y chromosome, thought to be a musty unchanging stretch of genes had changed significantly between humans and apes in terms of structure and content.  Approximately one third to a half of genes found in the human version of the chromosome were lost in the chimp chromosome, since chimps diverged from humans in the evolutionary tree.

Professor David Page compares these changes to a constantly renovated home, stating, "People are living in the house, but there’s always some room that’s being demolished and reconstructed.  And this is not the norm for the genome as a whole."

Wes Warren, Assistant Director of the Washington University Genome Center, another top genetics expert, agrees that the findings are extraordinary, "This work clearly shows that the Y is pretty ingenious at using different tools than the rest of the genome to maintain diversity of genes.  These findings demonstrate that our knowledge of the Y chromosome is still advancing."

One thing that may be driving faster evolution of the male sex chromosome is differing mating habits between species.  Where as humans typically take a single partner during sexual intercourse, numerous chimpanzees often mate with a single female in a short time period.  Males who produce more sperm, or whose sperm is better at impregnating females will have a better chance at beating the other males' sperm and passing on his genes.

To give an idea of just how profound this effect is, the difference between the rest of the human and chimp chromosomes is only 2 percent.  That means that the male sex chromosome is evolving nearly 15 times faster, or more, on average than the female genome.

The Page lab and the Washington University Genome Center are now looking at the Y chromosomes of several other mammals to further determine if this faster rate of male evolution is a characteristic of primates only, or other mammal lines as well. 

The study on the work was published in the prestigious journal Nature, and can be found here.

The research was funded by National Institutes of Health (NIH) and the Howard Hughes Medical Institute (HHMI).

Where as chimps have evolved to cope with the genetic pressures of group sex, human males and females have evolved on a different course.  Recent research indicated that human females are slowly evolving to be shorter and to carry more weight.


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RE: Study based on unproven assumptions
By William Gaatjes on 1/19/2010 1:22:26 PM , Rating: 2
quote:
I don't fight my instinct because I debate with you?


Why I would think such a thought about you not fighting your instinct ? Let me just use a few quotes...

quote:
Guess my religion jack ass

"relgious zealot" Aethiest

Dumbass.

Pull your head out of your ass. Seriously.

You are a "religious zealost" in the form of a sceintist

Bold comment from a "relgious zealot" Aethiest who bases his attack on someone's character rather than facts.



I find it amazing that I can judge not your character but your way of thinking just because of your choice of words. Does that say more about you then about me ? You do not fight your instinct because your choice of words. As your post has proven again. You call me names and you boast your example of a scientist who was also religious to prove your not existing point.

If you would not actually went into this fight,freeze or fright response , you could have actually read that I admit that i cannot proof the existence of god nor can I disprove it. Therefore i cannot rule out the existence of god how unlikely it may be. But in al honesty ,that is also not important for me. What is important for me is that people do not behave like a “drone” as yourself. For example Faraday was a religious man as, as you yourself already looked up many scientists are. Why should I dislike him or any person because that person is religious. No, what you fail to understand, is that al these scientists are scientist not because they are religious but because they want to understand and perhaps come closer to the answer, who or what is god. You have the flawed assumption that only because someone believes in god, that they can be a scientist. I find you very amusing indeed. I can explain you my point of view : I believe that our instincts and sometimes our emotions are a burden. To have full control over ourself is the first step to inner peace. The second step is to gain knowledge. Knowledge to understand why things happen and solve problems if there should occur problems. I find it amusing that I as an atheist seem to be wanting to be closer to ” god” then you . I am just human and my make mistakes, but I learn from them, improving myself. And one thing for sure is, is that I do not blindly believe a book that might contain history but is dramatized by poetics who in there very nature have this way of dramatizing stories, truly happened tails to fairy tails or just fairy tales. And that is what my point is as I have written. I do not mind if someone is religious, please do if it helps you. But do not force that religion on somebody else as you do your self. Because it is clear that I do not mind that you are religious and that it is very clear that you do mind that I am an atheist. What I mind is that people force their dogma upon me if they have their chance. While I just tell people to educate themselves and think for them selves.

But that’s my whole point in stead of reading the words, you just see what you want to see. The bible is therefore perfect for you. And it is afcourse obvious that it is not the bible itself or "god" that is the problem. It is people who have a certain view and connect this view to a religion which they force upon others. As you have proven again with this post. Start actually learning something and start thinking for yourself with the cognitive part of your brain. It may improve your life.

quote:
Bold comment from a "relgious zealot" Aethiest who bases his attack on someone's character rather than facts.


Where do you get this idea ? It seemes to me you have to do exactly what i did with myself. Learn to know yourself.

quote:

I bring up angels etc only in context with what you are arguing against. One must see both sides.


I have considered every option to the point that angels might have been extraterrestrials. But for now I have come to the conclusion that angels are the result of the imagination of people.

quote:

You argued what the bible believes.


Interesting choice of words… What the bible believes. The book it self believes ? Hahaha...

quote:

Well then Aethiest, research religion and quote it properly, because you are wrong. Guess my religion jack ass. I dare you. Guess my profession? I may or may not have something too do with astro physics when it comes to the Haydron Particle Acccelerator


I am guessing you are implying that i think you have the Islamic religion. You so aggressively defend the bible, i would think you are a cristian or catholic. But i would not be so ignorant. Surprise me ...
You know what the real fun part is ? I am just an ordinary even a under the average guy in some respect with a very powerful memory and an insatiable desire for gaining knowledge. Because of this desire i have learned what i know now and sometimes i outsmart people who actually have learned for varies disciplines. You just be an astro physicist at the collider...

quote:

I hear arguments on either side. You are biased, and took the assault against me and your "crusade" against religion rather than the topics at hand and the facts.

Biased, hahaha... If you would have actually read my post you would know that i am not biased at all to religion itself. But to the way it is expressed. Your response is a perfect example of what i am against at.

quote:

And also: Before you quote and blame religion as the cause of most "prominant" wars and crimes, maybe you should take your own theory and blame man.

That is exactly what i was talking about in my post. When something bad is done, it is man or the devil. When something good is done it is god and people must respect other people who bring th word of god. Take responsibility. At the beginning of Christianity the message could have very well been pure and good. After it got corrupted as every religion does, people started twisting a good message. I will let history speak for myself.

quote:

Considering Rome was known for war, they adopted it and were not EVER accepted for their actions by the catholic church or to be a part of the Catholic church, and no man was ever burned at the stake as a part of a certified Catholic action, and the Catholic league which did science was a PART of the Catholic church(which you would know if you read apologetics, anything accepted as a catholic exposition was documented, what you speak of was not documented) then you would know something.


History is not quite that simple.
The romans adopted the Christian message because they had seen that they where losing power. And Christianity was growing and growing. It seems pretty clear from history that the catholic institute has been a very aggressive institute.


RE: Study based on unproven assumptions
By William Gaatjes on 1/19/2010 1:28:24 PM , Rating: 2
quote:


Here's my tie-ins:

WWI. WII. North Korea. Every modern war has been against religion.



WOEHAHAHAHA. HAHHAHAHAHAHAHAHAHAHAHAHAHAHA. HAHAHAHHAAAA
. Please. WW1 started because of the serbs where tired of the suppression of the Austro Hungarian empire. They used a mentally unstable person named Gavrilo Princip to murder Franz Ferdinand. Ironically, Franz Ferdinand wanted to create more of a democracy and wanted to loosen up the tight strangling grip of the Austro Hungarian empire. The serbs had the backing of the russians because the serbs where afraid for the Germans then called Prussians.

WW2 started because Hitler had lost it and was tired because Germany had to pay for the WW1. Germany was at a economical depression. But he was a very good at theatrical performances enchanting people. Hitler let Hjalmar Schacht start a international bank. The bis was to finance the upcoming war. That war was WW2.

The Korean war was a political war started at the end WW2 When the USSR and the USA divided Korea in two. But even that was not the entire story. Korea has been in varies wars for decades even before the 1900.

quote:

Every war post Roman days, and every country which was not conquered by an organized religion remains in more constant extreme war than a Christian one. For example: Russia, North Korea, China and Japan in WWII, but do you list these facts? No. And it is more than just a little bit idiotic.


That is a very big lie. It had nothing to do with politics, or the separation of church and state ?
Learn some history...

Oh, just one more thing :
Swearing is used by people who do not have anything usefull to say as an argument to prove their point… Which the post you wrote and i am replying on has proven again.


RE: Study based on unproven assumptions
By postalbob on 1/19/2010 8:50:26 PM , Rating: 1
No swearing is used by people who respond to those who clearly insult others as a response.

If you take the "higher" route, while diving off topic, and act like an ass that's what you are.

The point of the wars comments:

NO Christian modern country has started a random war as powerful as one who sought to destroy it.

Sorry bud, the main mentality in ANY and ALL communist countries was to imprison or kill those of religious beliefs. The reason? As Hitler said in his speeches "Man must destroy God so that Germany can become a god"

You attacked my beliefs and named them. I can respond like a human and say FUCK you.

My reply to your insults is swear words. My reply to your comments is you are a science zealot.

All is meritted. You deserve the insults. And you are a science zealot. The drone mentality is followed even more with the destruction of religion (see my Hitler comment) in order to control thought processes. I'm sorry, you are just wrong. The only one of the two of us that is a drone, is the one making false statements.

If you noticed, I dislike the drone mentality too. You are following it to the letter. Again, you are indefinitely Californian. The "I'm high and mighty and never attack people" bullshit is a liberal thing.

I'm indepenadant Washingtonian, physics major, who will tell you 50 times, you are biased. Your arguments are unfair. Drones are drones. People are people. Your people have as much or more so of an effect. So get your head out of your ass. Following a religion, or following Hitler, or maybe the North Koreans? There's a reason why dictators destroy religion.

What you said about Catholic assaults is entirely untrue. And I advise you take history on it. Romans jumping on the christian band wagon, makes the person corrupt, not the religion they use. The person using communism for power makes the person corrupt. In theory communism is pretty good. The communism didn't make Hitler.

You aren't weighing shit. So sit down and take a dump, your shit stinks, and you are not "balanced" until you take away your "imbalance" against religion. You attacked me, I attack back, so fuck yourself.


RE: Study based on unproven assumptions
By William Gaatjes on 1/20/2010 12:45:49 PM , Rating: 1
quote:
No swearing is used by people who respond to those who clearly insult others as a response.


The only insulting done here is on humanity, because you are an insult to humanity.

quote:
If you take the "higher" route, while diving off topic, and act like an ass that's what you are.


Again your useless opinion and not a fact in any way.

quote:
The point of the wars comments: NO Christian modern country has started a random war as powerful as one who sought to destroy it. Sorry bud, the main mentality in ANY and ALL communist countries was to imprison or kill those of religious beliefs.


What's you point goofy ?

quote:

The reason? As Hitler said in his speeches "Man must destroy God so that Germany can become a god" You attacked my beliefs and named them. I can respond like a human and say FUCK you.


Again now you call me Hitler :).
You are a pathetic excuse for a human being. Nothing to say to prove me wrong. Hot air, Hot air...

My reply to your insults is swear words. My reply to your comments is you are a science zealot.

Again empty words with out meaning. You waste precious air.

quote:
All is meritted. You deserve the insults. And you are a science zealot. The drone mentality is followed even more with the destruction of religion (see my Hitler comment) in order to control thought processes. I'm sorry, you are just wrong. The only one of the two of us that is a drone, is the one making false statements. If you noticed, I dislike the drone mentality too. You are following it to the letter. Again, you are indefinitely Californian. The "I'm high and mighty and never attack people" bullshit is a liberal thing.


You my angry friend, are a perfect drone. Without thinking you assume something and it is fact. Without doubting anything you know your word is THE word. Your thought is THE thought... Your attitude is exactly the reason what is wrong with humanity. You cannot use facts so you insult and harass people. I would not be surprise you have this attitude in your daily life as well... I feel bad for the people around you... And again, what do you have against California ? Oh, by the way, i am not from California or the U.S. I am tired of proving you wrong every time.

quote:
I'm indepenadant Washingtonian, physics major, who will tell you 50 times, you are biased. Your arguments are unfair. Drones are drones. People are people. Your people have as much or more so of an effect. So get your head out of your ass.


Well , i feel sad for the other people in Washington, did they not ask you to leave by now ?

quote:

Following a religion, or following Hitler, or maybe the North Koreans? There's a reason why dictators destroy religion.


Although it useless trying to give you some information... There will always be people who want nothing else then power. And if that person uses religion or promotes himself as a religion, it is the same. If you would really know your history you would understand that. But i am sad to notice over and over again that with you it is not a matter of being unable but a matter of not wanting too.

quote:

What you said about Catholic assaults is entirely untrue. And I advise you take history on it. Romans jumping on the christian band wagon, makes the person corrupt, not the religion they use. The person using communism for power makes the person corrupt. In theory communism is pretty good.


Your point, is that you accept finally that what you read in your bible may very well not be the original message because the people in power at that part of time used the bible to control people ? May i dare to think that you have grasped this ? I doubt it.

quote:

The communism didn't make Hitler. You aren't weighing shit. So sit down and take a dump, your shit stinks, and you are not "balanced" until you take away your "imbalance" against religion. You attacked me, I attack back, so fuck yourself.


Hypothetically speaking, if god would exist, the first steps on the path is to find inner peace and accept your strengths and weaknesses. By gaining knowledge you actually are able to do so and to face problems in life more easily and you do not have to make mistakes to learn from them. You can just deduce what would be the result of certain actions. But then again i am an atheist maybe with the inner peace of a true priest or would i say monk...

You are empty... It saddens me for you are not the only one...


By William Gaatjes on 1/20/2010 1:10:50 PM , Rating: 2
A nice song, wonderful singer...

http://www.youtube.com/watch?v=LCuSo8q7HnI


By William Gaatjes on 1/24/2010 4:23:15 PM , Rating: 2
To think of modern day wars and when it comes close to religion...

The first gulf war was because Saddam Hussein needed money and attacked Kuwait. For years since 1982, Saddam Hussein was busy reconstructing the ancient city of Babylon.
If you would have said this, i might have given you some credit. Primary, it was oil , but this seems like a bit of trivial information, nevertheless as you can see, i am not biased. I look at everything from every perspective. For this is what i do...

http://en.wikipedia.org/wiki/Babylon

If you would have


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