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Sexual Reproduction Ch 38.1 Guide Ch 38.2 Development.

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2 Sexual Reproduction Ch 38.1 Guide Ch 38.2 Development

3 I1.Sexual/Asexual Reproduction Asexual Exact copy Mitosis One parent Constant conditions Sexual Genetic variety Meiosis = eggs & sperm Two parents Changing conditions

4 Asexual examples: Hydra Budding of polyps Regen- eration Of cut pieces

5 Amoeba asexual division 2 nd amoeba Nucleus

6 Asexual Reproduction: Runners in strawberries Spores in Puffball Mushrooms

7 Sexual Reproduction

8 Joey develops in a Pouch

9 Flowering Plants Sexual Reproduction Dry Pollen For sperm

10 Ferns Sexual & Asexual Reproduction Sexual & Asexual

11 Comparison of Egg & Sperm Egg Round Floats Food reserves One Ovaries 1N Sperm Oval Flagella No food reserves Many secrete enzyme to penetrate egg membrane Testicles 1N

12 Meiosis in the Gonads Sperm Meiotic cell division Egg

13 Gonads make gametes! Testes make sperm

14 Chromosomes Sex Chromosome Y determines a Male

15 Gonads make gametes! Ovaries make eggs

16 Tubal ligation

17 Reproduction Hormones HormoneProduced byFunction TestosteroneTesticlesMale sex traits FSHPituitaryStimulates LH LHPituitaryRelease of egg EstrogenOvariesFemale sex traits ProgesteroneCorpus luteumMaintains Uterus lining

18 Menstrual Cycle

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