reproduction in bacteria

1. WELCOME
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2. Bacterial Reproduction

3. Asexual Reproduction
Binary Fission:
• one parent involved
• offspring are identical to parent & each other
Advantages:
1. simple: only 1 parent
2. offspring are fully formed (no maturation needed)
3. very fast (20 min. in ideal conditions)
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4. Asexual Reproduction
Disadvantages:
• no genetic variety
• one unfavourable environmental condition can wipe out
whole population
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5. Binary Fission:
Asexual Reproduction
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6. Sexual Reproduction
• two parents involved
• offspring are genetically different
to parents & to each other
Advantages:
– genetic variety i.e. some are able to adapt to
unfavourable conditions (ex: antibiotic resistance)
Disadvantages:
1.more complex: slower because must find a compatible
partner
2.no new individuals produced
(i.e. no increase in population)
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7. Bacterial Conjugation
plasmid
• plasmid copies itself
• passes through pili
(cytoplasmic bridge) into
recipient cell
•cells separate with both
cells containing the
plasmid
donor recipient
cell (+) cell ( - )
pili
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8. THANK YOU
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