1. Types of ASEXUAL REPRODUCTION

2. Asexual Reproduction
ONE PARENT REPRODUCES OFFSPRING ALOne!
Genetic information (DNA) of offspring is IDENTICAL to that of the parent!!!
Unless mutations (changes in DNA) occur
Occurs in many unicellular organisms and many simple plants and animals
Quite rapid and produces MANY offspring!

3. TYPES of Asexual Reproduction
Binary Fission
Budding
Sporulation
Regeneration
Vegetative Propogation (natural and artificial)

4. Binary Fission
Equal cytoplasmic AND equal nuclear division (amount of chromosomes)
Ex. Protozoans, (amoeba), yeast, bacteria, and many algae

5. Binary Fission

6. Binary Fission in paramecium

8. BUDDING (in Hydra) Unequal cytoplasmic division Equal nuclear division
New organisms develop as “buds” off of parent
Ex. Hydra and yeast

9. Budding in hydra and yeast cells

10. What if?

12. Sporulation (producing spores)
Small specialized cells develop inside the parent cell which bursts, releasing the spores
Ex. Yeast and bread molds

13. Fungal Sporulation on Peaches

14. Bread mold

15. Yummy!

17. REGENERATION
The ability to grow and replace body parts or an entire new organism from a part of the original organism
starfish, lizards, crabs, lobsters, flatworms
small wounds in vertebrates heal this way

19. Regeneration in Planaria (flatworms)

20. Regenerating a Lizards Tail!

22. Vegetative Propagation
Artificial
Occurs when humans intervene to propagate plants asexually
EXAMPLES:
Cuttings, grafting
Natural
Certain plants can reproduce, (propagate) naturally, (on their own) asexually
EXAMPLES:
Bulbs, runners, tubers

23. Natural VP
Runners
A horizontal stem with buds that grow along the ground
Where a bud from a runner touches the ground, a new plant grows!
Ex. Strawberries!

24. Bulbs A Short underground stem that contains food
Ex. Onions, garlic, tulips, iris

25. BULBS

26. Bulbs

27. Tubers Underground stem that contains stored food
“Eyes” develop into tiny buds from which a shoot grows to produce roots

28. Eat your spuds!

29. Artificial VP Cuttings
Stem, leaf, or root is cut and planted to produce a new individual

30. Grafting A scion is placed into a stock
The scion will grow and become the dominant plant
Ex. A seedless orange scion placed into a seed – filled orange stock will yield seedless oranges!

31. Grafting Stock trunk of tree or original branch Scion
A twig from another tree that is placed into the stock of another tree