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Bacterial Reproduction

Bacterial Reproduction. Reproduction. When conditions are favourable bacteria can reproduce every 20 minutes In 48 hours a single bacterial cell could become culture 4000 times the mass of the earth Thankfully the food supply is limited and this does not happen. Binary Fission.

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Bacterial Reproduction

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  1. Bacterial Reproduction

  2. Reproduction • When conditions are favourable bacteria can reproduce every 20 minutes • In 48 hours a single bacterial cell could become culture 4000 times the mass of the earth • Thankfully the food supply is limited and this does not happen

  3. Binary Fission • When a cell has almost doubled in size it will replicate its DNA and divide in half • This produces 2 identical daughter cells • Binary fission is a form of asexual reproduction • Asexual reproduction does not invovle the exchange of genetic material

  4. Conjugation • Is a form of sexual reproduciton • Genetic Information is exchanged between individuals • A long bridge of proteins forms between two bacterial cells • DNA is transferred from one cell (donor) to another (recipient)

  5. Spore Formation • Bacteria form spores during unfavourable conditions • One type is called an endospore • Cell forms a thick internal wall the encloses its DNA • Spores can remain dormant for months until conditions improve

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