1. Ch 38.1 Guide Ch 38.2 Development
Sexual Reproduction
Ch 38.1 Guide
Ch 38.2 Development

2. I1.Sexual/Asexual Reproduction
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

10. Comparison of Egg & Sperm
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
Produced by
Function
Testosterone
Testicles
Male sex traits
FSH
Pituitary
Stimulates LH LH
Release of egg
Estrogen
Ovaries
Female sex traits
Progesterone
Corpus luteum
Maintains Uterus lining

17. Menstrual Cycle