html5
1 / 8

KEY CONCEPT Many organisms reproduce by cell division.

KEY CONCEPT Many organisms reproduce by cell division. Objectives. Compare and contrast binary fission and mitosis. Describe how some eukaryotes reproduce through mitosis. Vocabulary. Asexual Reproduction

rvandeventer
Download Presentation

KEY CONCEPT Many organisms reproduce by cell division.

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. KEY CONCEPTMany organisms reproduce by cell division.

  2. Objectives • Compare and contrast binary fission and mitosis. • Describe how some eukaryotes reproduce through mitosis.

  3. Vocabulary • Asexual Reproduction • Process by which offspring are produced from a single parent; does not involve the joining of gametes. • Binary Fission • Asexual reproduction in which a cell divides into two equal parts.

  4. parent cell DNA duplicates cell begins to divide daughter cells Binary fission is similar in function to mitosis. • Asexual reproduction is the creation of offspring from a single parent. • Binary fission produces two daughter cells genetically identical to the parent cell. • Binary fission occurs inprokaryotes.

  5. Environment determines what form of reproduction is most advantageous. • Asexual reproduction is an advantage in consistently favorable conditions. • Sexual reproduction is an advantage in changing conditions.

  6. Hydra bud Yeast Some eukaryotes reproduce through mitosis. • Budding forms a new organism from a small projection growing on the surface of the parent.

  7. Fragmentation is the splitting of the parent into pieces that each grow into a new organism. • Vegetative reproduction forms a new plant from the modification of a stem or underground structure on the parent plant.

  8. Question/Answer • How is asexual reproduction an advantage in some conditions? • Asexual reproduction produces genetically identical offspring that are well suited to their environment. • How might the asexual reproduction of genetically identical plants be useful to humans? How could it prove harmful to our food supply? • Since asexually reproduced plants are clones, we can theoretically grow a particular plant in abundance under certain conditions. However, if conditions change, a significant portion of our food supply could be adversely affected.

More Related