From the wiki:JediMB said:That's actually not how Asari reproduction works. The notion that an Asari offspring receives any amount of DNA from its "father" is purely superstition. Every Asari born is basically a slightly mutated version of her mother.
The partner can be another asari, or an alien of any gender. However, since the asari began encountering other sentient species, non-asari mates have become preferred for the diversity they provide. This reproductive process can lead to some confusion among non-asari, who might expect offspring with "mixed" genes. However, the offspring is always 100% asari as no DNA is taken from the partner, but is rather used as a "map" to randomize the genes of the offspring.
So I had my information partially wrong. Indeed other races don't mix their genes with Asari. But their DNA does diversify through them. So Asari would still have far more diverse DNA than humans. 99% of our DNA is the same in every human. Asari could already easily have 15 different DNA maps within their species, including human. (How it could be explained that the Asari can use someone else's DNA to 'map' their own DNA to beats me, but whatever.)