Asexual Reproduction

Asexual ReproductionBiology 4.1Asexual ReproductionAsexual reproduction results in the production of a new organism The organism produced has ____________to the parent Asexual Reproduction can be found in ____________

Binary FissionOrganisms that are prokaryotic ____________ like bacteria reproduce with ____________The parent cell divides so that the daughter cell contains a single chromosome____________

Binary Fission

MitoticProtista are single cell eukaryotic ____________ organisms____________ Identical to the division of any cell with a nucleusFollows the 4 steps: prophase, metaphase, anaphase, and telophase

Mitotic

Fragmentation Fungi (mold and mushrooms) reproduce by ____________The organism grows by sending thin string called ____________Hyphae grow ____________ searching for food____________

Animals Invertebrates ____________ are able to reproduce asexually ____________ Some use division and re-growth ____________Others use budding where ____________

Animals Plants Different plants will reproduce asexually with runners or complex root systems Plants have a specialized structure that allows them to grow, called a ____________

Plants

What do you think?In your groups think of 2 advantages and 2 disadvantages of asexual reproductionAdvantages to Asexual ReproductionNew organism is ____________ Do not need to find a partnerLow parent to offspring care, so ____________ The offspring is usually ____________Disadvantages to Asexual ReproductionNot a lot of genetic variety ____________Difficult for organism to adapt to ____________Low parent-to-offspring care, ____________ActivityEach group will pull a type of organism at randomThe group will then use the modeling clay to create 3D models The models must demonstrate the asexual reproduction of that species Groups will be given the opportunity to go on walk-about to see the models done by other groups Students are encourage to ask questions about the models Practice Questions What is binary fission? How is it different form mitotic cell division?How can fungi reproduce asexually?How can an animal reproduce by budding?What is an advantage to asexual reproduction?

Practice Questions One arm of a sea star (with part of the central disk) can regrow a complete sea star. Sea stars often eat oysters, by attaching themselves to the outside of the oyster shell. Oyster farmers used to try to destroy the sea stars by cutting them in to pieces, and throwing them back into the ocean. What do you think was the outcome of this situation.