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Sexual Reproduction

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Sexual Reproduction Ch 38.1 Guide Ch 38.2 Development I1.Sexual/Asexual Reproduction Asexual Exact copy Mitosis One parent Constant conditions Sexual Genetic variety ... – PowerPoint PPT presentation

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Title: Sexual Reproduction


1
Sexual Reproduction
  • Ch 38.1 Guide
  • Ch 38.2 Development

2
I1.Sexual/Asexual Reproduction
  • Asexual
  • Exact copy
  • Mitosis
  • One parent
  • Constant conditions
  • Sexual
  • Genetic variety
  • Meiosis eggs sperm
  • Two parents
  • Changing conditions

3
Asexual examples Hydra
Regen-eration Of cut pieces
  • Budding
  • of polyps

4
Amoeba asexual division
2nd amoeba
  • Nucleus

5
Asexual Reproduction
Runners in strawberries
Spores in Puffball Mushrooms
6
Sexual Reproduction
7
Joey develops in a Pouch
8
Flowering Plants Sexual Reproduction
Dry Pollen For sperm
9
Ferns Sexual Asexual Reproduction
Sexual Asexual
10
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

11
Meiosis in the Gonads
Sperm
Meiotic cell division
Egg
12
Gonads make gametes!
Testes make sperm
13
Chromosomes
Sex Chromosome Y determines a Male
14
Gonads make gametes!
Ovaries make eggs
15
Tubal ligation
16
Reproduction Hormones
Hormone Produced by Function
Testosterone Testicles Male sex traits
FSH Pituitary Stimulates LH
LH Pituitary Release of egg
Estrogen Ovaries Female sex traits
Progesterone Corpus luteum Maintains Uterus lining
17
Menstrual Cycle
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