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- uptwolait, on 04/16/2009, -0/+44"Many creatures have more than one pair of sex chromosomes; the platypus, for example, has five pairs, all inherited together."
Just when you thought the platypus couldn't get any weirder. - jwmann, on 04/17/2009, -1/+10Dugg for female condom thumbnail.
- ApokalypseNow, on 04/17/2009, -1/+9His "point"? WHAT point? That he's willfully ignorant of evolutionary biology, and science in general?
There's nothing faith-based about an inherently evidence-based field of science - evidence denies faith. - inactive, on 04/17/2009, -3/+10Huh. Not a rib after all, eh?
- gwaggy12, on 04/17/2009, -3/+10gross thumbnail.
- AndrewMoyer, on 04/17/2009, -0/+7The platypus is probably my favorite animal on the planet because of it's rather unique position on the evolutionary tree.
It's technically classified as a mammal (warm blooded, breast-feeds young, covered in hair), but it exhibits so many atypical attributes.
http://en.wikipedia.org/wiki/Platypus
QFWiki:
"The bizarre appearance of this egg-laying, venomous, duck-billed, beaver-tailed, otter-footed mammal baffled European naturalists when they first encountered it, with some considering it an elaborate fraud. It is one of the few venomous mammals"
"It has webbed feet and a large, rubbery snout; these are features that appear closer to those of a duck than to those of any known mammal."
"The Platypus has an average body temperature of about 32 °C (90 °F) rather than the 37 °C (99 °F) typical of placental mammals."
"The Platypus has extra bones in the shoulder girdle, including an interclavicle, which is not found in other mammals. It has a reptilian gait, with legs that are on the sides of the body, rather than underneath."
"Monotremes [the order the Platypus belongs to] are the only mammals known to have a sense of electroreception"
"Monotremes lay eggs, and the eggs are similar to those of reptiles in that only part of the egg divides as it develops."
--
It's like mother nature's junk drawer! - Soliden, on 04/17/2009, -2/+8Unintelligent Design.
See, I can be crafty with words too. - inactive, on 04/17/2009, -1/+6I'll give your X some attention ;)
- sgfreak784, on 04/17/2009, -0/+4I was asking a legitimate question, not making any kind of political statement or glib remark, and you digg me down?
Screw you, *****. - durga2112, on 04/17/2009, -0/+4Orphan in a family
And a sole survivor
He's a living fossil
Reptillian? Mammalian
He's a bird-beaked, beaver-butt Australian
Amphibious? Paradox wearing plaid socks
Furry beetle? A bugbear, and a palezoologist's nightmare - ApokalypseNow, on 04/17/2009, -3/+7CrazedLeper - ignoring reality since October of 2007 and beyond.
Your willful ignorance of evolutionary biology in no way constitutes a rebuttal of it. The evidence for evolution is objective, so you can verify it whether you want to accept it or not... but let's be honest here, you're not interested in the evidence because it contradicts your mythology, so you reject evidence-based science in favor unevidenced bronze age superstition.
NWO? OHNOES GRAB DA TINFOIL! WE NEED HATS, LOTS OF HATS!!1eleventy-one1 - inactive, on 04/17/2009, -1/+5the Y chromosome doesn't get any more attention.. infact it probably gets a lot less.. I've never heard of any hospitals that deal specifically with diseases that only effect men..
- kingmanic, on 04/17/2009, -1/+4What do you mean by Degenerating? Good mutations spread quicker with lower generation times but I don't know what you mean about "degenerating".
- amorrise, on 04/17/2009, -0/+3Orlando Bloom
- bionicvskungfu, on 04/17/2009, -0/+3Reminds me of this:
http://www.smbc-comics.com/index.php?db=comics& ... - iamnos, on 04/17/2009, -1/+3Women have some advantages having the double XX. Any genetic disorders on the X chromosome will generally only make the woman a carrier, whereas it can cause serious issues in a male.
Take muscular dystrophy for example. Its X-recessive so women generally get no symptoms, but males can have serious issues (like my two sons). - Mnementh2230, on 04/17/2009, -3/+5Crazed, you're about as crazy as they come. Seriously. Time to do a reality check.
- fredrockbluff, on 04/17/2009, -0/+2*****
- kingmanic, on 04/18/2009, -0/+1It's more complicated than that quote would make it seem. Additions are made as well and some important functional parts that require a pair will tend not to be lost. So it won't fade away.
- LonelyTylenoL, on 04/17/2009, -0/+1It's interesting that both males and females used to have all X chromosomes. There are only 3 genes that activate when a fetus starts to become a male. Because before that point, everyone is a female. Then when a gene on the Y tells the soon to be testicles to move down, that's when the fetus goes into the stages that turn it into a male.
When both males and females had X chromosomes, the genes found on the male X were like the ones found currently today on the Y. - Soliden, on 04/18/2009, -0/+1@Crazed:
You believe that man came from dirt. Irony much?
Also, abiogenesis is completely separate from evolution. Abiogenesis encompasses the formation of organic life through chemistry. Evolution takes course after this creation and governs the variation of life. Since you can't make a simple distinction I'm going to assume that you're just another typical spoon-fed ignoramus who doesn't care about the ACTUAL truth. - Nerotique, on 04/17/2009, -2/+3The feminists have got to get their punches in some way. This article reminds me of the famous Maureen Dowd article "Incredible Shrinking Y." I do completely understand where you're coming from though. One hundred years ago men and women had approximately the same lifespans. Now women in the west live on average 7 years longer than men. Most MRAs argue that it's due to the fact that out of every $10.00 spent on health care, women's health issues receive $9.00 of those $10.00. I'm inclined to agree.
- bentrinh, on 04/18/2009, -0/+1In males, you don't start off with XX and end up with XY. You start off with XY already. All fetuses are, however psychically identical until (in males) the SRY gene, located in the Y chromosome, is activated, in which the fetus develops into a male due to the proteins SRY creates.
- amorrise, on 04/17/2009, -1/+2When I think about how awesome it is that DNA only codes for proteins, but those proteins come together to create the other stuff we need to be human and function properly, it blows my mind. No wonder evolution took so long.
- inactive, on 04/17/2009, -0/+1report this *****
- amorrise, on 04/17/2009, -0/+1What are protein producers and inhibitors made of? Protein. DNA can also code RNA which functions inside of cells. Sorry for the mistakes.
- Soliden, on 04/18/2009, -0/+1Wrong on what grounds? Is it because I don't ignorantly accept petty ancient mythologies or is it because I ask questions? It's called natural selection for a reason. It wasn't an accident that caused us to reason, but a phenomenon that increased out overall fitness (ability to reproduce successfully). To break it down for you, because I can tell this may be a hard concept to grasp, human thought arose some 1.7mya in a mutation of microcephalon, causing an increase in brain size. Several of these mutations occurred in human evolutionary history from our divergence from old world monkeys giving rise to the great apes (something man is classified under.) Larger brains equate to larger mental capacity giving rise to complex emotions, thoughts, etc.
So there's my answer. A lot more satisfying to know that there is an actual reason, you know with evidence, to support actuality from fantasy. Let me know when you cross that border. - Myztry, on 04/18/2009, -0/+1"and evolution is a tug of war between males jettisoning genes that they find detrimental only to have females put them back, and vice versa."
Undoubtably it's more complex although the article did touch on additions. My point was more along the lines that since flies goes through generations much quicker than humans due to short life cycles, the whole process should be more advanced and thus the genes seem unlikely to be 'young'. - Myztry, on 04/18/2009, -0/+1"Scientists have found that, as the only chromosome pair that doesn't break and recombine every time a cell divides, the XY pair in males is unable to take advantage of the main way deleterious genetic mutations are eliminated. The XX pair in females does recombine, but for the Y, the only way to get rid of a bad mutation in a gene is to inactivate or delete the entire gene. Over millions of years, inactive genes are lost, and the Y shrinks."
- Triticum, on 04/17/2009, -0/+1It's ironic that the Y sex chromosome is asexual in a cytological context-no recombination. Mistake in the article = "the only chromosome pair that doesn't break and recombine every time a cell divides" refers to meiosis, not mitosis.
- TheShad0w, on 04/17/2009, -0/+1Also take into consideration that the X chromosomes repair and maintain the genes. X is the stabilizer while Y is the randomizer.
- Triticum, on 04/17/2009, -0/+1DNA also encodes some types of RNA that are themselves functional.
http://en.wikipedia.org/wiki/Non-coding_RNA - Avaseal, on 04/17/2009, -1/+1VD ain't no thang
- sandburn, on 04/17/2009, -2/+2Dugg for her name rhyming with a part of the XX's anatomy...
- sgfreak784, on 04/17/2009, -4/+4So..."In both humans and fruit flies, the Y chromosome has dwindled from a few thousand genes to a few dozen."
What does that mean if the Y chromosome continues to degrade? Eventually there won't be one, so what does that mean for the males of the species? - sgfreak784, on 04/17/2009, -1/+1OK, so Women are XX and men are XY...I assume talking about the "male X" refers to when there was no Y chromosome. That said, what happened to the male X? How and why did it change into the Y?
I assume it has to do with the quote "'A good place to put sexually antagonistic genes that are beneficial to one sex but detrimental to the other is on the sex chromosomes,' ... The Y always ends up in the male, so genes on the Y chromosome won't affect females."
Sorry, genetics is incredibly fascinating to me, but kind of confusing, too. Not enough letters, I suppose. :) - uptwolait, on 04/17/2009, -4/+4Maybe a "rib" out of the double helix.
- gothicgirl2, on 04/18/2009, -1/+1so men are going to die out first i hope i dont live long enough to see this happen
- TheShad0w, on 04/17/2009, -1/+1Actually the DNA codes for protein producers and inhibitors as well as the basic cell types through out the body (stem cells) which take on varied tasks based upon which proteins instruct the cell to become.
- Endeavre, on 04/17/2009, -0/+0Diseases that mostly only affect men do so because they affect the X chromosome.
- CrazedLeper, on 04/17/2009, -1/+1You believe that men came from monkeys that came from fish that came from ....rocks. You wouldn't know reality if you woke up into it every morning for a lifetime.
- TechEvil, on 04/17/2009, -2/+1Dugg for thumb. lol
- Julie188, on 04/16/2009, -6/+5Go X ... why should "y" get all the attention?
- CrazedLeper, on 04/17/2009, -4/+1Buried for use of the insanity defense. You're exactly the kind of person the NWO is looking to enslave. You're going to do it to yourself and like it. Sayonara.
- CrazedLeper, on 04/17/2009, -4/+1Yes, but you're wrong. Where did Neverlution get intelligence to give to us in the first place? Don't tell me; let me guess: "It was an accident". That's your answer for everything. I fail to see how that's any different (in principle) than saying "God did it". At least with the latter, you have an explanation--whether or not you like, can understand or explain it in detail.
- oddlyzero, on 04/16/2009, -7/+1ya, nice find. cool.
- CrankMyBlueSax, on 04/17/2009, -10/+3I'm still waiting for the announcement that the genes for making sammiches and fetching beer have been identified on the X chromosome.
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