Bio_1A_Lecture_22_Repro-1

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Asexual Reproduction Sexual Reproduction Create new individuals whose genes come from one parent Create new individuals by fusion of haploid gametes (meiosis) gamete (n) gamete (n) ovum (n) spermatozoa (n) zygote (2n) increase genetic variability enable animals living in isolation to reproduce relies mainly on mitotic division
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Mechanisms of Asexual Reproduction Budding Fission Parthenogenesis
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Parthenogenesis Development of an egg without fertilization Hermaphroditism One organism carries both male and female reproductive organs and gametes
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Reproductive anatomy of the human male Penis accessory glands thick ‘voluminous’ fluid; mucus; fructose; alkaline thin milky fluid; Clear mucid fluid; neutralize acidic urine Reproductive Biology in Humans (chap 46) Ureter
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1 4 3 2 Male sexual arousal Higher centers in brain Parasymp. nerves Penile vasodilation Increased penile blood Local release of NO NO GTP cGMP GMP PDE arteriolar vasodilation VIAGRA
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Reproductive anatomy of the human female Secrete mucus for lubrication
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Reproductive anatomy of the human female (cont’d) (Fallopian tubes)
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GONADAL STEROID HORMONES HO CHOLESTEROL
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This note was uploaded on 10/29/2009 for the course BIO biology taught by Professor Meighan during the Fall '09 term at Berkeley.

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Bio_1A_Lecture_22_Repro-1 - Asexual Reproduction Create new...

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