Last male of purebred rabbit species dies - The last male purebred Columbia Basin pygmy rabbit has died, leaving just two females in a captive breeding program created to try to save the endangered species from extinction. From cw
Wellllllllllllllllll Duuuuuuuuuuuuuuuuh! Females carry only the X chromosome. Males carry both X and Y. It is the male that determines the sex of offspring. You can't replicate DNA you don't have. So far only females have been cloned. There is no technology at present to combine the X and Y chromosome's DNA to produce a viable male clone.
Conclusion: if all the males of a species are dead and there is no sperm preserved, the species will go extinct in one generation.
Surfer Wrote the following on 05/19/2006 8:06 PM : So let me get this straight: because males have a Y chromosome, that means that they can't be cloned and a viable male produced which could then be raised for mating.
Paint me as "treading on ground that's not my area of study" but that just sounds stupid. Once the reproductive organs are in place, extraction and preservation is all it takes. Not that it matters since you can't create a stable genetic pool with only one or even two sources.
On the other hand, that just means guys like me are special and unique because, well, I'm a guy. And Golly's a guy and Juniper is...Juniper, how are you going to preserve your Y chromosome? Surely you're not waiting to be cloned?
Surfer Wrote the following on 05/20/2006 5:00 PM : Okay, so where'd all the DNA from the male that died go to? The point I guess I'm making is they could (have) save(d) some of the last males DNA. I suppose the next question is: why didn't they? If the species was that close, wouldn't it make some sort of sense to try to preserve a sample or two?