1. Sexual vs Asexual Reproduction? ? ? ? ? ? ? ? ? ? ? ? ? ?

2. Standard:
S7L3b. Compare and contrast that organisms reproduce asexually and sexually.

3. How are genetic traits passed on from generation to generation?
Reproduction
Two types: Asexual and Sexual

4. What is asexual reproduction?
offspring genetically identical to parent
Occurs through mitosis
Types of asexual reproduction: binary fission, budding, regeneration

5. What is binary fission?
Single celled organisms divide into two cells (fission)

6. What is budding?
Parent organism forms an outgrowth (budding) that forms into a new organism

7. What is regeneration? Regeneration: a whole individual from a fragment
Flat worms, sea anemones, sea stars, many plants

8. Advantages of Asexual Reproduction:
Easy and fast: grow population quickly
No energy spent in attracting mate, creating gametes, raising young
Great in a stable environment
Disadvantages of Asexual Reproduction:
Lack of genetic diversity-mutations stick around!
Not able to survive changing environments.

9. What is Sexual Reproduction?
-offspring genetically different from parent
Parents form haploid cells (meiosis) that fuse to form diploid organism
Sperm, egg, pollen, spores
Fertilization is external or internal

10. Advantages of Sexual Reproduction:
Genetic diversity that allows for **EVOLUTION**
More likely to survive changing environments (physical, increasing efficiency in avoiding predators, getting prey, etc.)
Disadvantages of Sexual Reproduction:
Population does not grow as quickly
A lot of energy spent in attracting mate, creating gametes, raising young

11. Where do variations in genetics come from?
Mutations
Any permanent changes in an organism’s DNA or genes.
Mutations are not always negative or harmful
MUTATIONS DO NOT OCCUR BECAUSE ANY ORGANISM NEEDS OR WANTS THE TRAIT