And then they start with the twin questions

And when it does it's not going to be that big a deal.

Identical twins have the same DNA.

I delivered identical twins.

Their nature and their nurture are almost the same.

(Laughter)

That would make them super similar, right?

I knew that I was different.

And this happens in every pair of identical twins separated at birth ever studied but much less so with fraternal twins separated at birth.

This would be sperm.

In the immortal germ line of human beings that is, the eggs that sit in the ovaries they actually sit there in a state of suspended animation for up to 50 years in the life of each woman.

A complementary finding, from a completely different methodology, is that adopted siblings reared together the mirror image of identical twins reared apart, they share their parents, their home, their neighborhood, don't share their genes end up not similar at all.

Now this became my new secret identity, and the first thing I did as a slayer was call my twin sister

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

So that afternoon, I went back to my house, and my three year old identical twin daughters, Eden and Tybee Feiler, came running to meet me.

I've been studying romantic love and sex and attachment for 30 years.

twins

Twins?

A twin?

You're telling me he has a twin?

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.

Two babies.

They're twins.

And the germ cells, we've learned already, these are the ones that produce gametes.

Do you think a male Gemini would get on well with a female Pisces?

On the other hand, other traits, like depression in men, or your preference for a particular political party, are more influenced by your environment than by your genes.

She's carrying twins.

And here's what happens if you get a pair of people who share all their DNA namely, clones or identical twins.

And you know, this is a country that over diagnoses certain mental disorders hugely.

Goldie was my sister. My twin sister.

You got a twin brother I don't know about?

His name is San E

Maximum,twins.

A pair of X's gives us a girl, and an X and a Y together gives us a boy.

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I have twins.

Replication lag is the example of the loss of which property

Now, the cartoon is not such an exaggeration, because studies of identical twins who were separated at birth and then tested in adulthood show that they have astonishing similarities.

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

I'm a twin.

I am a twin.

twins

But wait, Barry, there's still one more club lying there by my foot.

Skipp, grab the ttwins!

Let me do that Y chromosome in a separate color.