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Feminism: Sex and gender discussions

Any biologists here?

30 replies

WTAFisthisshit · 29/11/2017 19:45

Hi

I've lurked on Mumsnet for years and recently gravitated towards the feminist boards as it seemed to be only place where I found people with 'common sense' views.

You all seem to be very educated here so was wondering if someone could help explain to me what my daughter is currently being taught at uni.

She is studying psychology an is doing a biology module as part of it where she has been taught there are 8 different types of chromosome sex.

I was under the impression that xx = female and xy = male that there were rare instances of hermaphrodites and I was vaguely aware of xyy and xyyy which were still male but linked to violent offenders.

Does anybody know what this is and can explain it at a level that somebody with only secondary school science can understand and what the bloody hell it has to do with trans?

Thank you

OP posts:
GuardianLions · 29/11/2017 20:05

Some intersex people are XXY and can have both ovaries and testes (but I think they are usually infertile). I don''t know about XYY.

WTAFisthisshit · 29/11/2017 20:01

OK, so are ALL humans xx or xy or are there variations? Does what she's being taught have any basis in fact?

OP posts:
QuentinSummers · 29/11/2017 19:58

There are different sex chromosomes in some organisms. For example, mammals including humans have XX (female) and XY (male). Birds have ZW (female) and ZZ (male). In some other creatures the female is XX and the male only has one sex chromosome - XO

In all species that reproduce through sex (as opposed to cloning themselves) there are only two sexes. The female produces eggs and the male sperm. So even though the chromosomes vary the mechanism doesn't.

The journalist Matt Ridley wrote a very accessible (but also quite old now) book about this called The Red Queen.

WTAFisthisshit · 29/11/2017 19:56

I know that but what are the 8 different types she's being taught about? Is this an actual thing?

OP posts:
Lancelottie · 29/11/2017 19:54

It has nothing at all to do with trans. Your chromosomes are what they are, and will stay that way lifelong.

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