Female Reproduction

Question 1

Define Oogenesis

Answer 1

Female gamete production

Question 2

How does Oogenesis begin?

Answer 2

Female child in utero

Question 3

What occurs in Oogenesis?

Answer 3

Some cells in embryonic ovary differentiate into primary oocytes
- cells progress to Meiosis I

Question 4

In Oogenesis after the cell progresses to prophase of Meiosis I, division arrests until

Answer 4

Sexual maturity (puberty)

Question 5

When does Ovulation begin? What occurs?

Answer 5

Sexual maturity
Primary oocytes stimulated ea. month by hormones = resume Meiosis

Question 6

During Ovulation, the Oocytes…
This results in _____ so that only one cell has _____, yielding _____.
What does the other portion yield?

Answer 6

Resume Meiosis I from prophase = asymmetric cell division; all the cytoplasm; secondary Oocyte
Polar body

Question 7

At ovulation, secondary oocyte continues into _____.
This is arrested at _____ by _____

Answer 7

Meiosis II
Metaphase; Cytostatic factor (CSF)

Question 8

When does completion of Meiosis II occur?
What happens?

Answer 8

Fertilization; second asymmetric division yields mature fertilized egg + a polar body