Asexual Reproduction

1. Asexual Reproduction Unit 4-1 Notes Mr. Hefti – Pulaski Biology

2. Fill your chart in w/ the following information

3. Binary fission • How does it work? • The organism copies its DNA then splits in half • Example organisms: • Bacteria • Paramecium • Amoeba

4. Budding • How does it work? • Outgrowth of cell membrane pinches off and becomes its own organism • Example organisms: • Hydra • Yeast

5. Spores • How does it work? • Packets of genetic information grow into new organism • Example organisms: • Ferns • Mosses • Mold • Mushrooms

6. Eyes on tubers • How does it work? • New plant grows out of the spud • Example organisms: • Potatoes

7. Runners • How does it work? • New plant grows from horizontally growing stems • Example organisms: • Strawberries • Water lilies

8. Bulbs • How does it work? • Underground nutrient-storage structure grows into new plant • Example organisms: • Tulips • Daffodils • Onions

9. Regeneration • How does it work? • Body parts re-grow or chunks grow into new organisms • Example organisms: • Sea star • Planaria • Sponges • Lobster • AKA “fragmentation”

10. Common features All forms result in genetically identical offspring (unless mutation occurs) Cell division by mitosis (only) No need for Punnett squares for these organisms!

11. Graded Assignment • Divide sheet of paper into 4 equal sections • Examine four different slides using microscope • Provide overall title for activity • List names of group members – on the front! • In each box: • Draw diagram of specimen • List name of specimen • List magnification at which you viewed it (use your best judgment regarding appropriate power) • Label type of asexual reproduction the organism undergoes

12. Unit 4-1 Notes… Asexual Reproduction Name: ____________________________________________________________________ Period: ______