Which of the following are examples of differentiation in bacteria?Choose all the correct answers. Group of answer choicesHeat resistant endospores produced by species of BacillusGas vesicles in species of cyanobacteria that live in aquatic environmentsHeterocysts in cyanobacteriaThe type 4 pilus of Neisseria gonorrhoea
Question
Which of the following are examples of differentiation in bacteria?Choose all the correct answers. Group of answer choicesHeat resistant endospores produced by species of BacillusGas vesicles in species of cyanobacteria that live in aquatic environmentsHeterocysts in cyanobacteriaThe type 4 pilus of Neisseria gonorrhoea
Solution
The examples of differentiation in bacteria from the given choices are:
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Heat resistant endospores produced by species of Bacillus: This is a form of differentiation where the bacteria form a tough, dormant and non-reproductive structure called an endospore. This allows the organism to survive in harsh conditions.
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Gas vesicles in species of cyanobacteria that live in aquatic environments: These are protein-bound structures that provide buoyancy to the bacteria, allowing them to move up or down in the water column. This is a form of differentiation as it involves the development of a specialized structure.
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Heterocysts in cyanobacteria: These are specialized cells that are used for nitrogen fixation. This is a form of differentiation as it involves the development of a specialized cell type.
The type 4 pilus of Neisseria gonorrhoea is not an example of differentiation in bacteria. It is a type of fimbriae, or short, hairlike structures on the surface of the bacteria, used for attachment and not a form of differentiation.
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