17 Asexual Reproduction
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Transcript of 17 Asexual Reproduction
Reproduction without sexReproduction without sex
Binary fission in prokaryotic microbesBinary fission in prokaryotic microbes Mitosis in the somatic cells of eukaryotesMitosis in the somatic cells of eukaryotes Spore formation in fungiSpore formation in fungi Natural cloning in animalsNatural cloning in animals
Budding in sponges and coralsBudding in sponges and corals ‘‘virgin births’ in insectsvirgin births’ in insects
Vegetative reproduction in plants (eg. runners, Vegetative reproduction in plants (eg. runners, cuttings and rhizomes)cuttings and rhizomes)
Binary fission in bacteriaBinary fission in bacteria
Much faster than mitosis in eukaryotic cellsMuch faster than mitosis in eukaryotic cells Takes approx. 20 mins as opposed to several Takes approx. 20 mins as opposed to several
hourshours If resources were available once cell could If resources were available once cell could
become 16,000,000 in 8 hours!become 16,000,000 in 8 hours!
Binary Fission in bacteriaBinary Fission in bacteria
Binary Fission in bacteriaBinary Fission in bacteria
Binary Fission in bacteriaBinary Fission in bacteria
Binary Fission in bacteriaBinary Fission in bacteria
Binary Fission in bacteriaBinary Fission in bacteria
Binary fission in bacteriaBinary fission in bacteria
Bidirectional replication of circular DNABidirectional replication of circular DNA DNA moves to polesDNA moves to poles Cell elongatesCell elongates Cleavage furrow formsCleavage furrow forms Cell dividesCell divides
Asexual reproduction in plantsAsexual reproduction in plants
Parent Bud
Runner
Rhizome
New frond