Gametogenesis- Powerpoint
-
Upload
truonghuong -
Category
Documents
-
view
286 -
download
9
Transcript of Gametogenesis- Powerpoint
![Page 1: Gametogenesis- Powerpoint](https://reader033.fdocuments.in/reader033/viewer/2022061515/58886f3a1a28ab584c8c065d/html5/thumbnails/1.jpg)
Gametogenesis
• Gametes develop in the gonads (sex cells)
![Page 2: Gametogenesis- Powerpoint](https://reader033.fdocuments.in/reader033/viewer/2022061515/58886f3a1a28ab584c8c065d/html5/thumbnails/2.jpg)
•Their are 2 types of gametogenesis
![Page 3: Gametogenesis- Powerpoint](https://reader033.fdocuments.in/reader033/viewer/2022061515/58886f3a1a28ab584c8c065d/html5/thumbnails/3.jpg)
Spermatogenesis
• Production of sperm in the testes
• Produce 4 sperm from one cell
• Meiosis
![Page 4: Gametogenesis- Powerpoint](https://reader033.fdocuments.in/reader033/viewer/2022061515/58886f3a1a28ab584c8c065d/html5/thumbnails/4.jpg)
Male Reproductive System
![Page 5: Gametogenesis- Powerpoint](https://reader033.fdocuments.in/reader033/viewer/2022061515/58886f3a1a28ab584c8c065d/html5/thumbnails/5.jpg)
Oogenesis• Production of eggs in
the ovary.• Produce 4 eggs by
meiosis • One egg cells is
function• Three egg cells are
nonfunctional• The are known as
polar bodies
![Page 6: Gametogenesis- Powerpoint](https://reader033.fdocuments.in/reader033/viewer/2022061515/58886f3a1a28ab584c8c065d/html5/thumbnails/6.jpg)
Female Reproductive System
Sperm Enters the vagina 1st
Sperm must pass through the uterus 2nd
Lastly the sperm and egg meet here for fertilization
![Page 7: Gametogenesis- Powerpoint](https://reader033.fdocuments.in/reader033/viewer/2022061515/58886f3a1a28ab584c8c065d/html5/thumbnails/7.jpg)
OviductFertilization occurs here
![Page 8: Gametogenesis- Powerpoint](https://reader033.fdocuments.in/reader033/viewer/2022061515/58886f3a1a28ab584c8c065d/html5/thumbnails/8.jpg)
Zygote
• Zygote is a fertilized egg.
• A fertilized egg becomes an embryo as soon as the first cleavage occurs.
![Page 9: Gametogenesis- Powerpoint](https://reader033.fdocuments.in/reader033/viewer/2022061515/58886f3a1a28ab584c8c065d/html5/thumbnails/9.jpg)
![Page 10: Gametogenesis- Powerpoint](https://reader033.fdocuments.in/reader033/viewer/2022061515/58886f3a1a28ab584c8c065d/html5/thumbnails/10.jpg)
Internal Ferilization
• Chance of zygote survival is increased greatly
![Page 11: Gametogenesis- Powerpoint](https://reader033.fdocuments.in/reader033/viewer/2022061515/58886f3a1a28ab584c8c065d/html5/thumbnails/11.jpg)
External Fertilization
• Zygotes chance of survival decreases significantly
![Page 12: Gametogenesis- Powerpoint](https://reader033.fdocuments.in/reader033/viewer/2022061515/58886f3a1a28ab584c8c065d/html5/thumbnails/12.jpg)