Difference human Neanderthal is sperm and testis, smell and skin.

That's the egg, and we all know how this story goes.

Some people who have XX chromosomes develop what are called ovotestis, which is when you have ovarian tissue with testicular tissue wrapped around it.

My father's sperm somehow met my mother's egg, and they fused.

In the case of a male, these would be sperm cells.

And this girl calls herself Tinker.

Stuey, the hardest working PR guy. How's business?

In some cases, another species like the North American Leopard Frog showed that males exposed to atrazine grew eggs in their testes.

Let me do that Y chromosome in a separate color.

Psych... mental disorders.

I can see you're working at top speed.

Just as an aside, this unification, this fertilization that occurred from this sperm cell to this egg cell, so it essentially penetrates into this egg cell and it creates this zygote, which is a fertilized egg cell from my mother, and this contains all DNA from both my father and my mother.

So that very first cell that was essentially my mom's egg fertilized by a sperm cell from my father, that was a zygote, and as soon as it's successfully fertilized, it has 2N, or it has the diploid number of chromosomes in the case of humans, which I believe I am one of them.

So that's a gamete and this is a gamete.

And this is where the system gets really interesting.

Well, the result has been very good.

This is a research which was done in '86, but it's still valid.

It's not just any cell in the body.

Let me tell you, some of you may have the experience.

My mind... to your mind.

My mind to your mind.

My mind...to your mind.

I need to ask you to return with me to the beginning where each of us began.

Accuracy

Accuracy

Precision

Precision

Can you explain this?

The blue fairy?

Semen.

A fairy.

A fairy? !

A fairy?

They actually perform a surgery, take them out of the ovaries of the mother, and then they fertilize them with semen, either it might come from the father or a sperm donor, so then all of these becomes zygotes once they're fertilized with semen.

The fairy changed the prince into a cat.

There is now a new career path called stool donor.

And you need a sperm bank?

He attended to his business.

Attend to your business.

Steal a pizza, San Quentin.

Meet the hermaphrodites.

I said he wasn't human.

I don't know about you, but I find it exhilarating to see how vague psychological notions evaporate and give rise to a physical, mechanistic understanding of the mind, even if it's the mind of the fly.

So this very first cell that was created from this fertilized egg, this is called a zygote.

Or being in a position like Lance Armstrong,