Animal Reproduction and Development

Animal Reproduction and Development - Animal Reproduction...

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Animal Reproduction and Development Modes of Reproduction 0. Sexual reproduction 0. Meiosis, gamete formation, and fertilization 1. Offspring show genetic variation 1. Asexual reproduction 2. Single parent produces offspring 3. Offspring are genetically identical Stages of Development Gamete formation Fertilization Cleavage Gastrulation Organ formation Growth, tissue specialization Male Reproductive System Semen = Sperm + Secretions 0. Secretions from epididymis aid sperm maturation 1. Seminal vesicle secretes fructose and prostaglandins 2. Prostate gland secretions buffer pH in the acidic vagina 3. Bulbourethral gland secretes mucus Prostate Cancer 4. Second leading cause of death in American men 5. Detection 0. Digital rectal exam by physician 1. Blood tests for prostate-specific antigen (PSA), a tumor marker Testicular Cancer 6. About 5,000 U.S. cases per year 7. Can be detected by self-exam 2. Men should check testes monthly 3. Check for hardening, lumps
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Female Reproductive Organs Menstrual Cycle
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Animal Reproduction and Development - Animal Reproduction...

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