Oogenesis Flashcards
1
Q
What happens to the secondary oocyte?
A
Ovulated
Begins to go through meiosis 2
2
Q
What happens to the secondary oocyte going through meiosis 2?
A
Meiosis 2 stops in metaphase 2
3
Q
When does the secondary spermatocyte complete meiosis 2?
A
When it is fertilised by sperm
4
Q
What does meiosis 2 of the secondary spermatocyte produce?
A
Ovum
Polar body
5
Q
What happens to the polar bodies?
A
Die by apoptosis
6
Q
What happens to the ovum?
A
Nuclei of sperm and ovum fuse
forming zygote
7
Q
What happens if the secondary oocyte is not fertilised?
A
Lost from the uterus with the uterus lining
in menstruation
8
Q
How long does oogenesis take? How is this?
A
12 - 50 years
includes time taken from when female is embryo to when her first egg is fertilised by sperm
