Physiology of Reproduction 1 Flashcards
1
Q
Absence of Y chromosome means what ducts form?
A
Ovaries and Mullerian ducts.
Uterus and fallopian tubes form.
2
Q
What does the presence of a Y chromosome mean?
A
SRY gene switches testicular development.
Testis produce MIF (Mullerian inhibiting factor)
Prevents Mullerian duct development
3
Q
What do gametes specialise from?
A
Germ cells
4
Q
Where do gamete cells move to and by what movement?
A
Move to genital ridge by amoeboid movement
5
Q
How many primary oocytes are present at 20 weeks?
A
5-10 million
6
Q
How many primary oocytes left at birth?
A
1 million
