-
The
Y chromosomes is the section of the genome with the biggest variation .
There appears to be 4.8 times variation than in other chromosomes.
Also the one in humans is completely different from the one in Chimpanzees.
-
Although most mammals have Y chromosomes in fact it's the female that has
the Y chromosome.
-
My postulate is the Y chromosome in male mammals and in female fruit
flies is where new genes are constructed and tried out. There is no X
chromosome to back it up, if the gene proves defective so defective ones are
rapidly lost to survival of the fittest if that's true.
-
Successful genes I propose are moved to the X chromosome. There,
they may continues to mutate but at a lower rate. Now defectiveness
produced by a single point mutation is not exposed 1/2 of the time because
of the good copy on a female organism (or I guess a male one in fruit
flies).
-
For a mechanism which might measure effectiveness of a gene is longevity
and genes in the Y chromosome might move from one end to another. Once
they reach the other end, "the finish line", they might be moved to the X
chromosome, with a similar process on the X chromosome.
-
So I propose that all animals are trying to innovate. That is the
species is trying to improve itself continually, perhaps in order to take a
greater proportion of resources and have greater numbers or if survival of
the sweetest is true, maybe they are trying to innovate in their genome, in
order to do a better job of serving