Does anyone have information about the latest studies where it's proposed that the female egg actually decides the sperm which impregnates it?

This would go a long way in proving my theory that sperms have always had this over inflated self worth value.

I don’t know, but it seems to me that when you employ ICSI (intra-cytoplasmic sperm injection) that the egg really has no choice. It’s all up to some technician in a lab.

Are you referring to the momentary thinning of the zona pellucida which allows penetration, followed by the vittelline membrane preventing passage of further spermatazoa?

Decide?

Could you provide a reference or some background? This sounds like a very interesting concept.

@YARNLADY
Well that’s what I am trying to determine. How extensive the research is and if anyone can direct me to particular studies.
@pdworkin
Perhaps but apparently there’s some research that state’s it’s more selective than previously thought.

That would require that the egg has the ability to determine wether the incoming projectile has an X or Y chromosome on board which means there has to be a chemical difference on the hull of the sperm and the egg has to have organelles to detect that difference, both of which I severely doubt being the case.

Never heard of this concept. Why do you think the egg would have a preference from one sperm to the next? Seems if this is true the system doesn’t work very well, because a significant number of conceptions don’t make it to term, or even a few weeks, and some that make it to term seem genetically poor, that is if you judge genetic abnormalities as a negative thing, I don’t mean to offend anyone.

Every sperm is sacred. See!

@ragingloli
No I never said anything about determining sex.

I think that pdworkin was on the right track

@drClaw
A true classic always.
Have you been plagiarizing my previous posts? :P

Here is some trivia for you.
During wartime, the male birthrate rises substantially. It’s as if they knew we needed more men.
Women who have healthy eating habits produce more girls.
Combining the two: during wartime, women don’t eat as well, which causes a larger male birthrate.

That’s why it is always a good idea to sit up straight! to keep those good swimmers go’in toward the ultimate union.