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Bacteria Reproduction: Not quite the same!. What type of cells are bacteria?. Prokaryotic cells: Single celled Have a single strand of DNA and some plasmids Do Not go through Mitosis or Meiosis. Prokaryotic Reproduction.
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What type of cells are bacteria? Prokaryotic cells: • Single celled • Have a single strand of DNA and some plasmids • Do Not go through Mitosis or Meiosis
Prokaryotic Reproduction • http://bugs.bio.usyd.edu.au/learning/resources/CAL/Microconcepts/moviePages/bacteriaDivision.html • http://www.ryancshaw.com/Files/micro/Animations/BacterialGrowth/PLAY_bacterial_growth.html
Bacterial Conjugation - Transfer of a Plasmid (Primitive Sexual Reproduction) http://highered.mcgraw-hill.com/sites/9834092339/student_view0/chapter28/bacterial_conjugation_-_transfer_of_a_plasmid.html
How is a eukaryotic cell different from a prokaryotic cell when considering the heredity material?
Prokaryotic cells have a single strand of DNA, not chromosomes. Prokaryotic cells DO NOT go through mitosis or meiosis!
Viruses: • What viruses are NOT! • Considered to be alive • Able to metabolize on their own • Live outside of a specific host cell • Reproduce on their own • In other words they are not LIVING!
http://biology.about.com/od/virology/a/aa11108a.htm • http://highered.mcgraw-hill.com/sites/9834092339/student_view0/chapter28/life_cycle_of_t2_phage.html
How are viruses different from both prokaryotic cells and eukaryotic cells?
Viruses can NOT reproduce on their own. They must highjack a living cell! • Prokaryotic and eukaryotic cells reproduce on their own.
How do viruses reproduce? • They attach, insert heredity material, highjack cell, produce more viruses and break out of cell.
How do viruses reproduce? • Lytic Stage: Active
How do viruses reproduce? • Lysogenic Stage: Latent or Hidden
Review: • How do bacteria reproduce asexually? • How do bacteria reproduce sexually? • What is the difference between a prokaryotic cell and eukaryotic cells?
Review: • How are viruses different from both prokaryotic cells and eukaryotic cells? • How do viruses reproduce?
How do bacteria reproduce asexually? • By replicating (copying) the single strand of DNA, cell grows and then divides into two cells. This is called binary fission.
How do bacteria reproduce sexually? • Bacteria attach to each other by their pili and exchange plasmid material.
What is the difference between a prokaryotic cell and eukaryotic cells? • Prokaryotic cells do NOT go through the processes mitosis or meiosis!
How are viruses different from both prokaryotic cells and eukaryotic cells? • Viruses are NOT cells, they are not considered living organisms. They can NOT reproduce on their own. They need a specific living host in order to reproduce.
How do viruses reproduce? • A. Attach to a host cell • B. Inject hereditary material into host cell • C. Highjack the host cell making it reproduce more viral material • D. Reassemble viruses and lysis from the host cell