The Process of Fertilization

1
The Process of Fertilization
Egg
Sperm

Zygote
2
The Process of Fertilization
The sperm enters into the ovum.
3

• Notes to the teacher
• The following transparencies are of
• Spermatogenesis and Oogenesis. The phases
• have been separated in order for you to use
• them as overlay transparencies.

4
Spermatogenesis
Mitosis
Spermatogonium (2n)
Primary Spermatocyte
5
1st Meiosis
Second Spermatocyte
6
2nd Meiosis
Spermatids (1n)
7
Maturity
Sperm Cells (1n)
8
Oogenesis
Oogonium (2n)
Primary Oocyte
9
1st Meiosis
polar body
Secondary Oocyte
10
2nd Meiosis
polar body
Ootid (1n)
11
Maturity
Ovum (1n)