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Reproductive System Processes: Gametogenesis and Fertilization

Gametogenesis is the development of gametes in the gonads, resulting in sperm production in the testes and egg production in the ovary. Spermatogenesis forms 4 sperm from one cell through meiosis in the male reproductive system, while oogenesis produces 4 eggs from meiosis with one functional egg and three nonfunctional polar bodies in the female reproductive system. Fertilization occurs when sperm meets egg, typically in the oviduct, forming a zygote that develops into an embryo following cleavage. Understanding the processes of gametogenesis and fertilization is crucial for reproductive success.

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Reproductive System Processes: Gametogenesis and Fertilization

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  1. Gametogenesis • Gametes develop in the gonads (sex cells)

  2. Their are 2 types ofgametogenesis

  3. Production of sperm in the testes Produce 4 sperm from one cell Meiosis Spermatogenesis

  4. Male Reproductive System

  5. 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 Oogenesis

  6. Female Reproductive System Lastly the sperm and egg meet here for fertilization Sperm must pass through the uterus 2nd Sperm Enters the vagina 1st

  7. OviductFertilization occurs here

  8. Zygote is a fertilized egg. A fertilized egg becomes an embryo as soon as the first cleavage occurs. Zygote

  9. Chance of zygote survival is increased greatly Internal Ferilization

  10. Zygotes chance of survival decreases significantly External Fertilization

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