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Types of Asexual Reproduction
Transcript of Types of Asexual Reproduction
single parents cell replicates its genetic material and divides into two equal parts
Amoeba has between 30 and 40 chromosomes depending on the species
Amoeba dubia has several hundred chromosomes Muticell organisms, such as hydras and sponges, have only a few different cell types, they are also able to reproduce asexually
areas of an individual may undergo repeated mitosis and cell division and can develop into an identical organism in a method called budding
the hydra and the sponge develop an outgrowth or bud
the bud may detach from the parent and become a new individual or remain attached
budding is advantageous for animals such as sponges, which attach to rock and very little same animals and many plants can reproduce by a method called fragmentation
if an organism breaks apart as a result of injury, each fragment the develops into a clone of its parents
some animals, such a certain species of sea star, can reproduce asexually from fragments
in these species, if one of the arm detaches from the parent's body, it can develop into another sea star if it contains enough of the parents sea star's genetics information many plants can also reproduce
reproduction occurs when special cells. usually in plants stems and plants roots, divide repeatedly to form structures that will eventually develop into a plant identical to the parent
the main disadvantage of vegetation reproduction it that the new plants will all grow very close to each other and to the parents
this can lead to a competition for soil, nutrients, and light and can cause the plants to be less healthy a spore is a reproductive cell the grows into a new individual by mitosis
some plants such as mosses and ferns can also form spores to reproduce
many spore types have a tough outer coating that allows them to survive in harsh conditions such as drought or extreme temperatures until conditions become favorable is a plant reproduction
where the root parts and makes a new root
where a new part of the plant comes out
keeps reproducing stems and roots cutting are often dipped into rooting power containing plant hormones wthin two days of streptococcus bacteria entering your body, you may get a very sore throat and fever because the bacteria multiply into million very quickly if the environment condition are favorable, a bacterium can reproduce every 20 minutes the one ring of DNA does replicate Binary fission is the only method of reproduction for some types of bacteria colonies can be maintained in the same place, parents and are carried to new locations unicellular yeast cells also reproduce by budding Grafting in grafting plants of a desirable plant are removed and attached to the rooted stock of another plant http://2.bp.blogspot.com/_f4iu3HOx9Lk/TUDI0clENlI/AAAAAAAAAAg/1gU1qZiDczM/s1600/budding.gif http://www.youtube.com/watch?v=489CSop00sY http://glencoe.mcgraw-hill.com/sites/dl/free/0078664276/281029/ccq_ch12_q4a.gif http://www.youtube.com/watch?v=UsFQW6s9zp0 http://www.anbg.gov.au/bryophyte/illustrations/sphagnum.gif http://www.ekcsk12.org/faculty/jbuckley/leclass/mushroomreproduction.jpg http://images.tutorvista.com/content/reproduction/vegetative-propagation-by-runners.jpeg http://www.cssforum.com.pk/attachments/css-compulsory-subjects/everyday-science/everyday-science-notes/3135d1270577530-short-notes-explanation-cutting.jpg http://images.tutorvista.com/content/reproduction/bud-grafting.gif