gametogenesis gametes develop in the gonads (sex cells)
TRANSCRIPT
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Gametogenesis
• Gametes develop in the gonads (sex cells)
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•Their are 2 types of gametogenesis
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Spermatogenesis
• Production of sperm in the testes
• Produce 4 sperm from one cell
• Meiosis
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Male Reproductive System
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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
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Female Reproductive System
Sperm Enters the vagina 1st
Sperm must pass through the uterus 2nd
Lastly the sperm and egg meet here for fertilization
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OviductFertilization occurs here
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Zygote
• Zygote is a fertilized egg.
• A fertilized egg becomes an embryo as soon as the first cleavage occurs.
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Internal Ferilization
• Chance of zygote survival is increased greatly
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External Fertilization
• Zygotes chance of survival decreases significantly
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