Asexual Reproduction 1 single organism produces a genetically

Asexual Reproduction – 1 single organism produces a genetically identical offspring.

Asexual Reproduction

Asexual Reproduction Advantages • Fast population growth • Doesn’t require a lot of energy • Organism does not need a mate Disadvantages • No variation (differences in species) • Organism can’t adapt to change

Asexual Reproduction Examples 1. Binary Fission: when 1 parent divides into 2 offspring Ex. Bacteria & Protists https: //ww w. youtube. com/watch ? v=X 7 Qz 9 o c 4 Ds. A

Asexual Reproduction Examples 2. Budding: new organism grows off of parent A cell or group of cells pinch off from parent

Asexual Reproduction Examples 2. Budding: new organism grows off of parent Ex. Hydra, coral, yeast, flatworms https: //www. youtube. com /watch? v=GF Eg. B_yt. DZY

Asexual Reproduction Examples 3. Regeneration: organism can grow lost limb or completely new organism https: //ww Ex. Worms, sea stars, gecko https: //w ww. youtu be. com/w atch? v=A a. N 6 u. Rvf. P LY w. youtube. com/watch ? v=Krfcgl. O m. BYw

Asexual Reproduction Examples 3. Regeneration: organism can grow lost limb or completely new organism https: //ww Ex. Worms, sea stars, gecko https: //w ww. youtu be. com/w atch? v=A a. N 6 u. Rvf. P LY w. youtube. com/watch ? v=Krfcgl. O m. BYw

DNA is the code of life, and when it is wound up it’s called a chromosome

Chromosomes carry genetic material that is copied and passed through generations

Genes are segments of DNA https: //www. yo utube. com/wat ch? v=q. Ua. FYz. FF b. BU

Mitosis • During asexual reproduction, the nucleus of a cell undergoes cell division making 2 identical daughter cells.

Mitosis • Most cells in our bodies reproduce this way Humans have 23 pairs of chromosomes. 46 Total

The Stages of Mitosis

Mitosis 1. Interphase • Before mitosis begins • Chromosomes are copied • The cell spends most of its life cycle in this stage

Mitosis 2. Prophase • Chromosomes condenses • Nucleus breaks down

Mitosis 2. Prophase • Chromosomes condenses • Nucleus breaks down 3. Metaphase • Chromosomes line up in the middle • All or nothing! (it has to be successful in order for the new cell to be identical)

Mitosis 4. Anaphase • Chromosomes are pulled apart • Sister chromatids move to opposite sides of cell https: //www. youtube. com/watch? v=f-ld. Pg. Ef. AHI

Mitosis 4. Anaphase • Chromosomes are pulled apart • Sister chromatids move to opposite sides of cell 5. Telophase • Chromosomes loosen • Nucleus reforms

Mitosis 6. Cytokinesis • Cytoplasm divides and forms 2 new daughter cells https: //www. youtube. com/watch? v=L 61 Gp_d 7 evo