fertilization

[whizzbee]

i think i had ever read about if a fertilization occurs when the egg and sperm comes from different species (closely related), then the offspring will be steril (i'm not really sure, i could be wrong)..is that occurs in all kind of species (even if it's not closely related)?? is it possible?

(what if between human and ape????) if that's possible, what would it be?? hmmpphh..i wonder.......

[MrMistery]

fertilization is not possible between any two species. the sperm protein bindin(or an equivalent) needs to be recognised by receptors on the egg cell

[whizzbee]

Thanks, Mr.Mistery..

[Jammerz]

It is possible in certain closely related species.

Examples include mules (a hybrid of a horse and a donkey) and the liger (hybrid of lion and tiger). In such cases, the animal will be sterile.

[MrMistery]

it is possible, but hybrid sterility or hybrid breakdown will occur most likely. Read my post. I said "any two species"

[Darby]

It actually depends upon who defined the species. An older definition is based upon reproductive incompatibility, a newer one on capability of offspring, but there are species who break those rules, some of whom aren't even that closely related.

[mcar]

Natural laws apply. Though genetically, we can do it. What is the essence of doing such? --for man's convenience or out of curiosity.

Naturally, it not permissible.