Sexual Differentiation Flashcards

1
Q

What is sexual determination?

A

Sexual determination is a genetically controlled process that determine what sex you should be.

It is controlled by a molecular switch on the Y chromosome

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2
Q

What is sexual differentiation?

A

Sexual differentiation is a process with the phenotype as it’s product. Aka male/female.

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3
Q

What are the different levels of sexual differentiation?

A

Embryo XX/XY genotypic sex

Gonadal sex, hormone secretes

Phenotypic sex internal/external genitalia

Legal sex, ID

Gender identity

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4
Q

When does the gonadal ridge develop into gonads?

And where can you find it at this point?

A

Around 3-4 weeks old of a embryo.

It can be found on the wall of lower thoracic lumbar region.

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5
Q

What will the Mullarian duct differentiate into?

A

Uterus.

Aka female internal sexual organs.

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6
Q

What will the wolf Ian duct develop into?

A

Vas deferens.

Aka male internal sexual organs.

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7
Q

What is the sex determining molecular switch? And where is it?

A

Sex determining region Y (SRY).

It can be found on chromosome Y

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8
Q

What does the SRY do?

A

The gene cause the differentiation of Gonad into testes from the wolfian duct.

This happens sometime after the 7th week.

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9
Q

Which two cells of the testes produce hormones?

A

The Sertoli cell produce anti-mullarian hormone

The leydig cell make testosterone

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