Welcome to European Tribune. It's gone a bit quiet around here these days, but it's still going.
Here's a very disturbing report on radiation outside of my expertise. With scary implications.

Millions Fewer Girls Born Due to Nuclear Radiation?

Female Chromosomes Especially Vulnerable?

The biological mechanism behind the skewed sex ratio wasn't investigated in the study. But previous radiation experiments on animals suggest the boost in males may be due to damage to X chromosomes in sperm, Scherb said.

In humans, a sperm cell contains either an X or Y chromosome, while an egg contains no Y chromosome. If an embryo has an XY combination, it will become a boy. An XX combination results in a girl. (Get a genetics overview.)

It's not known exactly why X chromosomes in sperm would be more likely to sustain radiation damage than Y chromosomes or in X chromosomes in eggs, Scherb said. Perhaps it's because X chromosomes are simply bigger targets or because eggs insulate their chromosomes better than sperm cells do, he speculated.

It could also be that, because X chromosomes--being larger than Y chromosomes--carry more genes, X chromosome damage is more likely to result in a fatally deformed embryo, he said.

Information on the study's co-author and institution:    Institute of Biomathematics and Biometry

"Life shrinks or expands in proportion to one's courage." - Ana´s Nin

by Crazy Horse on Mon Jun 27th, 2011 at 04:37:55 AM EST
Chernobyl has had a completely negligeable effect on the health of surrounding populations. The proof of this is that the effect on the health of the surrounding populations has been completely neglected.

It is rightly acknowledged that people of faith have no monopoly of virtue - Queen Elizabeth II
by eurogreen on Mon Jun 27th, 2011 at 06:19:22 AM EST
[ Parent ]
Missing /snark tag fixed.  

{ET Moderation Technology]  

The Fates are kind.

by Gaianne on Mon Jun 27th, 2011 at 01:46:46 PM EST
[ Parent ]
The only comment i can make, shows how little is known (especially at the genetic level) regarding radiation.

"Life shrinks or expands in proportion to one's courage." - Ana´s Nin
by Crazy Horse on Mon Jun 27th, 2011 at 04:31:36 PM EST
[ Parent ]


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