Quote:
Originally Posted by lolol
Not necessarily. Genes don't jump to different chromosomes (Movement is usually just within the individual chromosome); besides that, sexual reproduction is more-or-less necessary for genetic diversity. The few species that reproduce asexually -- haplodiploidy doesn't count here because unfertilized eggs spawn males -- tend to be insects in isolated regions that don't have much competition within their niche. I don't think humans would go down that evolutionary path partly because there's no selective pressure against sex, partly because sexual recombination protects against disease (Arms races between us and the bacteria/viruses and such).
Besides that, it'd take more than a few thousand years. Hell, an 'instant' in evolutionary terms is something like 500,000 years. XD
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No it's been tracked in recent years, we can't look at the genes from the Y chromosome for the last 1000 years to determine the speed but we are seeing a drop in the genes the Y chromosome carries, last I checked the X chromosome has 1000 some genes and the Y has only 125 or so, also they HAVE proved the Y chromosome used to have more, but again without longer records it's impossible to tell how much or how fast this is occuring, we just know at some point, some day, baring any sudden changes in enviroment that may alter the evolutionary path, men will lose more and more of their differences with women.
Edit: Getting off topic here but I'll just finish with this coppied from a wiki page, not really sure to be true, but still:
"Y chromosome, shrinking
With time, larger and larger areas became unable to recombine with the X chromosome. This caused its own problems: without recombination, the removal of harmful mutations from chromosomes becomes increasingly difficult. These harmful mutations continued to damage Y-unique genes until several finally stopped functioning and became genetic junk; this was eventually removed from the Y chromosome.
Today, the human Y chromosome itself contains only 86 working genes; compare this to close to 1000 working genes on the X chromosome. In some animals, Y degradation is even more severe. The 10-12 Mb dunnart Y chromosome, with only four characterised genes; among them the SRY gene, is the smallest known mammalian Y chromosome."
ok someone talk about mind TF before da man shuts us down :O