IF,

I am not talking about foetuses, but fully grown adults supposedly possessing a brain and common-sense, and able to tell male genitalia from female genitalia. About 1.7% of people are born with intersex traits (hermaphrodites), but that is an entirely different subject.

Yuyutsu,

I like the Sanskrit word - "Nemaste".
"I bow to the divine in you."

"Refusing to answer a question does not amount to not knowing the answer.
What happened to our right for silence?" Yuyutsu.

That is fine for the individual Yuyutsu, but not for one who wishes to sit in judgment of others. Their answer definitely offers an incite to how well or otherwise they are likely to discharge that duty. If they squib an answer they most definitely do not have the right to ever judge others.

Hassy,

I'm sure in your good old days you would have simply applied the thumb screws to Murphy and extracted an answer.

Ipso Fatso said- "We are all conceived as female. At about six weeks?, approximately half of the foetuses switch to being male. This 'switching' is not always as complete and straightforward as we might expect. There is partial switching, which results in humans with mixed characteristics. Nether truly male nor truly female."

Answer-

Perhaps there might be too much consumption of estrogen mimicking compounds such as soy especially in baby formula and in expectant mothers.

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4270274/
http://www.scientificamerican.com/article/soybean-fertility-hormone-isoflavones-genistein/

http://en.wikipedia.org/wiki/Tabula_rasa#Psychology_and_neurobiology

Steven Pinker has some views on this- not sure if I agree with all of them.

Anyway we know too little to be messing around with nature here. It's interesting that many woke lefties believe in going back to nature on one hand but they tend to believe in gender reassignment on the other- maybe their views are based on projection. Even doctors and researchers have been know to make this error. Many lefties don't seem to have a good grounding in science.