Wednesday, May 23, 2007

X chromosome, Y chromosome

The human race needs women for proliferation,there is ample evidence of this in genetics,wherein the X- chromosome(which determines the sex of a girl) is more powerful than the Y chromosome(which the sex of a boy).
The X chromosome has more important genes which determine a variety of characteristics apart from the sex of females.The X chromosome has genes determining blood groups,balding,colour blindness etc..
On the other hand, the Y chromosome stays content in just determining the sex of a male.That is why,the X chromosome is present in all human beings,whereas Y chromosome is present only in males.
Therefore,if the X chromosome is deficient in any of the genes it is responsible for,it results in disease for males,but in females since there are two x chromosomes,even if one X chromosome is deficient,they still can be normal since the other X chromosome takes up the function,a condition known as carrier state.
also the Y chromosome is associated with aggressiveness,anti social and sometimes criminal behavior.There is proof of this as persons having abnormalities in Y chromosome(i.e excess of Y chromosomes like XYY syndrome,where there is an extra Y chromosome due to chromosomal abnormalities) show anti social,aggressive and often criminal behavior.
This is not the case when there are chromosomal abnormalities with X chromosome(eg:-Turners syndrome(XO),superfemales(XXX,XXXX etc))

This clearly shows that even at the chromosomal level,females are better than males...

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