1. Part 1: Plant Reproduction
Asexual and Sexual

2. Definition of Plant Reproduction
Process by which organisms duplicate themselves
Propagation
Deliberate reproduction of plants either sexually or asexually.

3. Sexual and Asexual Reproduction
Through formation of seeds
Requires two sex cells or gametes
Formed by meiosis
Each requires one set of chromosomes (haploidal)
Two gametes form cell with two sets of chromosomes (diploidal)
Zygote

4. Sexual and Asexual Reproduction
Vegetative process
Eliminates genetic variation
Facilitated by combination of:
Mitosis
Normal division of cell nucleus
Cytokinesis
Completion of division and formation of cell wall

5. Sexual and Asexual Reproduction
Homologous Chromosomes
Produce different plants
Homozygous Chromosomes
Produce nearly exact duplicates

6. Cootie Catcher Review
Using the template provided, follow the instructions to make your very own cootie catcher.
To label the cootie catcher, put colors on the front, numbers on the inside and definitions under the flaps.
You will have four main flaps to write the definitions of the following terms:
Reproduction
Propagation
Sexual Propagation
Asexual Propagation

7. Breaking down Sexual and Asexual Propagation
Part 2:
Breaking down Sexual and Asexual Propagation

8. Sexual Propagation Sexual Reproduction: Uses seeds in one of two ways:
The union of the female and male sex cells to produce a seed (embryo).
Ovule: female sex cell.
Pollen: male sex cell.
Embryo (seed-germ): an immature plant.
Sexual reproduction involves the creation of a genetically new individual.
Uses seeds in one of two ways:
Scarification
Breaking seed coat to permit water uptake by embryo
Stratification
Exposure of seed to low temperatures
Destroys growth inhibitors
Occurs naturally during winter

9. Benefits of Sexual Propagation
Less expensive than asexual
Faster than Asexual
It is the only way to get new varieties of plants
Some plants can only produce sexually

10. Show What You Know! In your own words, describe sexual propagation.
List two benefits of sexual propagation.
Differentiate between the two types of ways seeds are used in sexual propagation.

11. Asexual Propagation
The reproduction of a plant without the uniting of a pollen or ovule.
Can be referred to as vegetative propagation since no seed is involved.
Uses vegetative parts of existing stock plant to grow new plants called daughter plants.
Leaves, stem or roots
The daughter plant will have traits identical to those of the plant which they were derived, also called a clone
Clones
New plants reproduced asexually from single plant

12. Types of Asexual Propagation
Cutting
Using a short section of plant stems for propagation.

13. Types of Asexual Propagation
Layering
Involves getting roots to grow from the stem. I.e., magnolia tree

14. Types of Asexual Propagation
Budding
Taking a bud from one plant and moving it to another.

15. Types of Asexual Propagation
Separation
Using vegetative structures are separated from the parent plant as a natural means of reproducing.

16. Types of Asexual Propagation
Grafting
Placing a section of a stem of one plant onto another plant.

17. Types of Asexual Propagation
Tissue culture
Taking a group of cells or a single cell and growing it to a plant.

18. Benefits of Asexual Propagation
True traits of the parents
Maintains genetic purity with
100% replication of parent plant.
Produces more plants faster
No seed
Some plants do not produce a seed or the seeds are too small to work with.

19. Show What You Know! In your own words, define asexual propagation.
List the benefits of asexual propagation.
List the types of asexual propagation and give one key word for each type.

20. Exit Ticket……
________ is the deliberate reproduction of plants either sexually or asexually.
The process by which organisms duplicate themselves is called____________.
Homologous produces ________ plants and homozygous produces __________ plants.
Define asexual propagation.
Define sexual propagation.
Explain the processes that facilitate asexual propagation.
List the benefits of sexual and asexual propagation.
Select three types of asexual propagation and describe the process of each.