Y chromosome

We all (if we are genetically 'normal') have 46 chromosomes. Of which only two are sex chromosomes. Variation in living things occurs because of mutations in sections of chromosomes which code for proteins. These mutations can give rise to new alleles. These can occur over all 46 chromosomes. Suggesting that variation is limited to the sex chromosomes is total and utter nonsense.

Cor blimey, this got weird

Thanks to the scientists posting, it’s very interesting

So she's literally wrong then?

I'm not so sure it's rubbish

You also seem to misunderstand 'mutation'.

Not all mutations are deleterious.

You really don't understand the biology and it might be better if you read a little more on the topic.

No it's not. Crossing over can occur. Rarer because of its smaller size but that is true for all the smaller autosomes.

You do realise that we all (males and females) have 22 autosomal pairs of chromosomes and then the sex chromosomes? So to suggest that males aren't having variation through independent assortment and crossing over is total rubbish.

GottaGetUp

I don't think that's what she means by mutations, I think she means "problems"

inkering scientists, in thawing and nudging the Y, were trying to induce Y recombination, and btw, maybe rescue dudes. It also seems likely that tinkerers were on a reconnaissance mission, trying to see if they could move Y’s 45 dying-ass sperm-making genes onto the X chromosome – getting the X to do even more shitwork for dudes. (The X already provides genetic material dude needs for, for example, making his brains (40% of the X is devoted to brain-making), making his balls, and making his future sperm tails lash. (That’s right. Man’s raison detre – and they can’t even make their own balls. “He’s got BALLS.” Sure he does… From mother)). Given the precarious state of the Y chromosome, many genes4dudes once on the Y are now eating out of the fridge over at dude’s other chromosomes. All by themselves, they got up and left. Perhaps tinkerers hoped, if arranged for before the Y totally discombobulates, this colonizing-another-chromosome final strategy could keep dudes around. Since the X isn’t turn-key quite yet, scientists interested in saving their danglies may have to look at hotwiring another chromosome from dude’s own lot.

Mutations=evolution

Yeah I know men have an X, but we've got two

...so...?

The Y, despite its best efforts, cannot repair itself, and so dumps all mutations from one dudegeneration into the next. “Adam” passes all his mutations onto his son, who passes his father’s mutations and his own mutations onto his son, who passes his grandfather’s mutations, his father’s mutations and his own mutations onto his son… The destruction, because it is cumulative, is astronomical. Each dudegeneration becomes more and more damaged. Each dudegeneration becomes weaker and weaker.
The X chromosome, on the other hand, has the lowest mutation rate of any chromosome in the entire human genome.

Yeah I know men have an X, but we've got two

golgiapparatus

The Y crossing over, isn't this something scientists tried to achieve but failed at

But they're not on their way out. And I'm pretty sure that any desire to destroy the planet has very little to do with understanding the small number of genes present on Y chromosomes.

Is that a biological truth that can't be changed?

So all down to the feelz?

And the Y chromosome can recombine. So your grasp of the biology seems confused.

You are aware that males have an X chromosome and 44 autosomes, in addition to the Y chromosome?

My point, I guess l, is that maybe men's collective desire to destroy the planet and bomb the shit out of everything is connected to the fact that they can sense they are on the way out

So when you say "males" in the context of evolution, you actually mean "Y chromosome".

Did you read the link I put above?

Females evolve, males do not

And the Y chromosome can recombine via crossing over.

Individuals don't evolve. Populations evolve.

What exactly is your point sakura?

Sorry about the cross out lines

The Y is the only chromosome in the human genome which cannot recombine – meaning the Y – that which makes dudes dudes, — can’t share or improve itself (the Y can’t recombine physically, due to the shrivel, and because if the Y tries to recombine with the X, X hurts Y bad). To males, females are the mere conduit for maleness. The Y is passed down male to male to male — the only chromosome in the human genome which functions like a clone.

trustyourperceptions.wordpress.com/2013/09/01/dudesaredoomed1/