It might be a good time to read up on transpeople before WWII. I don't think there are more now, but more "out". I doubt the numbers have increased as to "being" but more the ability to to talk about it with less repercussions. In the US the mood was more conservative and gays and transpeople were forced into hiding or had to live as straight in public. Also the economy made it difficult for LGBT people who were out to find and keep jobs. Even today we can't a good number because of the stigma still attached to being LGBT.Originally Posted by GBJoker
That said, there are things that have effected the genome. We know DES did and it is possible chemicals like Agent Orange did. Environmental hazards existed long before 1940 also, so maybe there have been changes.
The expression of many things depend on more than pair of chromosomes. X and Y was easy because it was quite noticeable even without gene sequencing to see. Getting deep into this there are 23 pairs of chromosomes. The XY or XX pair is one. There are also many combinations of such as alluded above (the calico gene for the colors orange and black are on the X and in order to get tri-color cats you need two X's, how ever you can have male calicos but they are XYX or XXY and thus sterile). Gene typing is early still and we know certain genes or combinations of genes can cause birth defects. (Ya all getting sleepy yet? This was actually a full semester class for me and I didn't even major in it). It would be nice to think the RR and WW would make only white red or pink peas but it doesn't. Gene expression is whole science in itself. I doubt most geneticists are freaking out, most are trying to manipulate the genes to stop disease and cancer. There are studies being done on transgenetics also, I think they are serious. But under stand when you are less than 1% of the population and being trans isn't a life or death syndrome medically (not talking social constructs or moral ethics...true medical), research is going to look for a cure for cancer instead. Which BTW they have found certain genes can be manipulated to cure or prevent that.
