2. Cell Division:
Asexual Reproduction

3. Asexual and Sexual Why do cells divide? Reproduction
– Pass on genetic information
There are 2 types of organism reproduction:
Asexual and Sexual

4. Create offspring from one parent organism
Asexual Reproduction
Create offspring from one parent organism
Using basic cell division - Mitosis
Rapid and effective reproduction method
Cells are “clones” – genetically identical
Mitosis IS asexual reproduction: making an identical copy (offspring) from an existing cell (parent)

5. A parent cell becomes two genetically identical offspring cells
Types of Asexual Reproduction:
1. Binary Fission:
The process by which a unicellular organism divides by mitosis into two equal halves
Bacteria
(like E. Coli)
A parent cell becomes two genetically identical offspring cells
Remember: even though we call this “binary fission” it is still just a simplified Mitosis

6. 2. Budding Types of Asexual Reproduction:
In Unicellular organisms: similar to binary fission BUT the division is not equal
Ex. Yeast
In Multicellular organisms, a miniature version of the organism grows directly on the adult
When large enough, simply detaches & becomes an independent organism
Ex. Hydra

7. 3. Sporulation Types of Asexual Reproduction:
The process by which an organism produces reproductive spores (cells) by mitosis.
The organism stores these spores in SPORANGIA, which burst open to release spores
Spores are capable of producing adult organism
Ex. Bread mold
In specific types of plants, sporulation can be a form of sexual reproduction

8. Ex. Strawberry plants, willow branches, vegetable cuttings etc.
Types of Asexual Reproduction:
4. Vegetative Propagation
The process by which a new organism is created from roots, stems, or leaves of plants
Ex. Strawberry plants, willow branches, vegetable cuttings etc.

9. Types of Asexual Reproduction:
5. Regeneration
The process by which a multicellular organism is divided into fragments.
Each fragment becomes a new organism by regenerating the parts that are missing
Ex. Star fish

10. Agricultural Uses of Asexual Reproduction Video: 20 mins Cloning a Plant Experiment

11. Full set of Chromosomes Full set of Chromosomes
MITOSIS – in general P M A T
Parent cell:
Full set of Chromosomes
Remember:
ALL asexual methods of reproduction are just fancy Mitosis
Daughter cells:
Full set of Chromosomes
2 identical daughter cells

12. PROS – Asexual Reproduction – CONS
No diversity in organisms
clones are vulnerable to disease/environment
Large number of offspring
made very quickly
Each offspring will be successful
clones are well adapted
Little possibility for evolution
clones are identical
Stay close together
colonies build if nutrients are present
Can lead to overcrowding
starvation if not enough nutrients
No need to waste energy
finding a sexual partner ?

13. CAN YOU ANSWER THESE QUESTIONS? S1-1-01:
Why do cells divide and how does it work?
Vocabulary & Concepts 
Interphase Mitosis Cytokinesis
Asexual Binary Fission