I've been lurking for some time now, and decided to join in with this question.
Life as we know it is dependent on homochirality. I was wondering:
Why aren't there life forms based on opposing homochirality (D-AAs)(of course they would have to have their own evolutionary path)?
Chance for getting both homochiralities(HC) is not that much higher than getting just one.
How would life based on one HC outcompete life based on the other HC?
I mean, they aren't even competing for the same nutrients.
P.S. I'm not sure my question is clear, because English is not my native language, so if it turns out it's not clear, I'll try to clarify it.