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19 June, 19:01

A bacterium that is transformed: Select one:

a. will probably die within 48 hours

b. cannot form a conjugation pilus

c. if injected, it always will result in the death of a mouse

d. has acquired naked DNA from the environment

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  1. 19 June, 21:06
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    d. has acquired naked DNA from the environment

    Explanation:

    Bacterial transformation is a process whereby a living bacterium takes up pieces of DNA from the environment and the foreign DNA becomes incorporated into the genome of the bacterium thereby 'transforming' it genetically.

    A transformed bacterium does not necessarily die within 48 hours, all other factors being considered.

    Transformation does not hinder a bacterium from forming conjugation pilus.

    Transformation does not always make a bacterium to be lethal to mouse. It depends on the gene present in the foreign DNA.

    The correct option is d.
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