Sex Among the Hermaphrodites

Welcome to the SDMB, sabend.

There is already an active thread about this column, so I’ll merge your thread into the older one.

bibliophage
moderator CCC

Fausto-Sterling’s numbers have been disputed, especially since she defines intersex as “any “individual who deviates from the Platonic ideal of physical dimorphism at the chromosomal, genital, gonadal, or hormonal levels”.” See: Sax, Leonard. “How common is intersex? A response to Anne Fausto-Sterling” Journal of Sex Research, August 2002. I shall quote from it:

Welcome, from another WS major! This is your first, post, right?

The problem with “intersexed” is defining it. Seems like, like pornography, it would be one of those “I know it when I see it” things, and what you might consider an intersexed individual might not be so categorized by me, right?

Isn’t that pretty much what I said?

On the subject of chimeras, even if you smush together one female and one male embryo, you won’t get an individual with both testes and ovaries. Only the germ cells respond directly to the genetic sex; the rest of the embryo (including the bulk of the gonads) senses the overall hormone mix secreted by the germ cells and picks the corresponding developmental program. In mice at least, mixed-sex chimeras are biased to be male because the androgen-driven male program overrides the female program. Oddly enough, in mice genetically male cells can make ova, so a phenotypically-female mixed-sex chimera can have offspring from either of its contributors.

Ah sorry - upon re-reading your original post I see that I read “would not only not be a clone” as “would not only be a clone.”

Send in the clones!

Well, thanks for clearing up the spelling of the word.

In Villa Rica, Georgia grammar and high schools - in the early to mid 60’s - I always heard it pronounced “Morpha-Dike”.

I don’t think any of us really knew what it meant: It was just another derogatory word used for someone not with the “Uberl33t”.

As in, “Don’t talk to him, Billy! He’s a Morpha-Dike!”

A “Morpha-Dike” was worse than a “FRAPP” (Frappe’?) which was someone who would fart in the bathtub and bite the bubbles as they surfaced.:stuck_out_tongue:

Quasi

In Maine, 50 years ago, that was a “freeny”.

Another recommend of the book. Eugenides began research for a novel with an intersexed side-character and was amazed at how little researched the condition was outside of clinical circles and how much misconception there was (including his own) and thus the supporting character became the main character (Calliope Stephanides, later known as Cal Stephens).

The main character (this is no spoiler as it’s pretty much on the first page) is born a girl by all visible standards (the very elderly doctor does not perform a very thorough exam) but is actually male in terms of chromosomes and hormones; his testicles are internal and he has what appears to be a vagina but isn’t. Supposedly, per Eugenides’ notes, this is the case with most people called “hermaphrodites”- they usually appear to be completely normal sexually on the surface, but their inner workings are wrong. It’s also a far more common condition than I would have thought- I forget the exact numbers, but most cities of any size would have a small community of intersexed people if statistics were reflected.

The notion of the hermaphrodite with fully functioning male and female sex organs seems to be basically an invention of the sideshow (marginally unsafe for work poster). True intersex people are a lot more boring.:wink:

As another inquiry, can one identical twin develop into a different sex than the other twin? IANA geneticist, but I assume such a thing is possible.

Then, if the two to have a child, wouldn’t that be the same as a non-chimera intersex person autofertilizing?

Even if it is possible (it’d at least be highly unlikely), at least one of them would almost certainly be sterile. As identical twins, they’d have the same set of chromosones, and while it is possible (for instance) to have XY chromosones and be phenotypically female, such individuals can’t take the female role in reproduction.

This was not a natural occurrence, but it is interesting nonetheless and tangentially related: David Reimer- one of identical twins, his penis was damaged beyond repair during a circumcision and he was raised as a girl and never told he was born a boy. He later learned the truth and was had restorative surgery, but his case is much studied by gender researchers. For understandable reasons he suffered severe depression; sadly he committed suicide at 38, his unwanted fame probably a contributing factor. (OTOH, Reimer’s identical twin brother who was raised as the correct gender also suffered depression and died by suicide, earlier than his brother.)

Intriguing to me are identical twins in which one is gay and the other is not. When one identical twin is gay the other has a slightly larger probability of being gay than if one is left handed and the other is right handed (which also happens). Again, doesn’t answer your question, but is interesting.

Almost all identical twins occur when a fertilized egg splits into two. But it is also possible for an egg to split and then each of the two identical eggs be fertilized with different sperm, resulting in half-identical twins. They could be different sexes, because the sperm accounts for the sex of the fertilized egg. No one is sure how often this occurs, because the twins are assumed to be fraternal.

I have heard that the occurance of hermaphrodite is quite a bit higher than most people would expect.
What’s the true story on Jamie?

If you mean Jamie Lee Curtis, there’s speculation that she might be genetically male but androgen-insensitive. Don’t ask me how this rumor got started (so far as I can tell, the only evidence is that she’s never had kids), but she’s never confirmed nor denied it. Some argue that her lack of denial, despite the rumor’s prevalence, is proof that it’s true, but it could just as easily be a case of “there’s no such thing as bad publicity”, and she knows she’ll get talked about more if she doesn’t settle the question.

So, maybe, but only she and her doctor know for sure.

And hopefully her husband.

Most herma’s have their physical appearance changed at an early age. Sometimes their other sex organs are not very apparent. I read about one that didn’t fond out she was a hermaphrodite til adulthood. Many hermaphrodites do not have a full set of both organs. I googled this once after reading the Jamie Lee story. I read someplace that she did allude to something along these lines on a talk show once. It might have been the urban legends site.

Regarding Jamie Lee Curtis, no mention of the hermaphrodite/androgen insensitive male issue is made, but there is this comment:

So that is the official explanation for why she hasn’t had any children. Though she has adopted.

Here is what Snopes has to say.

Regarding the ambiguity of her name, there is this:

-Statement from Janet Leigh, Jamie Lee Curtis’s mother

It is conceivable this is a cover story, but given that Jamie’s older sister is Kelly, that strongly enforces that this explanation is true, that Janet and Tony named the children before birth (and before they could know the child’s gender). Therefore, the name ambiguity has been explained without supporting the idea that Jamie was intersex.

I also like this comment from Snopes.