The article which was published in Genetics magazine and was also reproduced through Yahoo news said that the about 1,000 pair of genes present in the Y chromosome is now reduced to just around 80. What will happen if it is totally lost? That means a male who is XY will not exist since females are XX and therefore a man will only have an X? and then will only pass an X to a female.
But there seems to be an anomaly. The question is if Y is lost and the fact that our reproductive genes have two chromosomes does it mean XY will become XX? The Y chromosome is essential for reproduction and upon reading the article the future of this chromosome has two scenario:
1. The Y chromosome composition is unique and it can replicate itself. The defective genes are not passed on to the offspring does it will remain and will not actually be gone.
2. Upon extinction the characteristic of the Y chromosome will be passed on to the 23 pairs of chromosomes packed with genes that dictate every aspect of our biological functioning. This is evolution.
As to the reason of its recent rapid degeneration I cannot see other explainable factor but the rapid deterioration of the environment. The amount of toxins and pollutants in our current environment is affecting every aspect of our body that mutation of the human race and ther species is likely to occur very soon.
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