In a developing fetus, what influences whether it is going to become male or female? What influences the cells to start building male or female organs?

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In a developing fetus, what influences whether it is going to become male or female? What influences the cells to start building male or female organs?

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Anonymous 0 Comments

According to science: whether or not it (the fetus) has XX or XY chromosomes.

According to wokeness: whether or not the fetus indentifies as a male or female.

But yeah. Genetics decides if its a male or female (which in turn is due to more or less random chance)

Anonymous 0 Comments

If you listen to pop music and eat strawberries, you have a better chance of having a girl. If you want a boy, eat carrots and listen to alternative music.

At least, that’s how it works in The Sims, so I’m assuming it applies to real life too.

Anonymous 0 Comments

depends what sperm gets to the egg. its random wether each sperm has the X or Y chromosome.

the woman’s egg always has an X chromosome.

when they combine together, you have only 2 choices – XX or XY
(besides some uncommon anomalies where there is a different combination, this for example is how down syndrome happens)

if its XX, its a girl, if its XY its a boy

Anonymous 0 Comments

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Anonymous 0 Comments

It is literately determined at the point of conception , depending on the sperm that does the deed.

Basically all female eggs are “the same” its the sperm that “decides” if it will be male or female

Anonymous 0 Comments

How does it end up being roughly 50/50 in the population?

Anonymous 0 Comments

What others have said regarding chromosomes is not technically correct.
Male/female expression is controlled via the existance of testosterone, as detected by Androgen Receptors.

The vagina and the penis are built from the same part of the body. Ovaries and testicles are also the same proto-organ. Androgen receptors detect testosterone and trigger the gonads to either turn into ovaries, or descend and become testicles. Similarly, the proto-penis will either grow and the womb gets reabsorbed, with parts of it being used in fabrication of certain connections in the penis, or the proto penis will invert, becoming the vagina, clitoris, etc and connecting to the womb, while the tubes connect the womb to the overies.

It is the Y chromosome that is generally considered to code for the production of testosterone.

Source: I was born with persistent mullarian duct syndrome as a result of androgen receptor deficiency.
Results: womb wasn’t entirely reabsorbed. testicles didn’t descend but did turn into testicles, though being internal caused them damage and I am sterile as a result, and on the smaller side of average.

Anonymous 0 Comments

Oi. The XY chromosome thing is a simplified explanation from 6th grade science. The reality is its MUCH more complex. Scientific American published an article just touching on the complexities of [sex and gender development]([https://blogs.scientificamerican.com/sa-visual/visualizing-sex-as-a-spectrum/](https://blogs.scientificamerican.com/sa-visual/visualizing-sex-as-a-spectrum/)) in 2017 that touches on it and also offers a visual of just how many moving parts go into it and where they can diverge.

Anonymous 0 Comments

The DNA determines sex. The father either provides an X or a Y chromosome which pairs with an X provided by the mother. XY makes a male, XX makes a female. In the case of a male, the Y chromosome is present which carries a gene on it called SRY, which around 6-8 weeks causes a protein called TDA (testicle determining factor) to be produced. This protein signals the gonads (which at this point could become ovaries or testicles) to become testicles. Then, the testicles will begin to make testosterone which will trigger a bunch of other things to happen that result in a male child. They also make another hormone that blocks female traits from developing. Lacking a Y chromosome, none of these things happen and the child continues to develop as female.

Anonymous 0 Comments

Ay the moment the sperm cell and egg combine it’s already decided, sperm can have an X or Y chromosome if it’s X it’s female while Y is male