If you are plating bacteria on plates with an antibiotic in the agar, why must y

Question

If you are plating bacteria on plates with an antibiotic in the agar, why must you still use sterile techniques (choose all that apply)? Select one or more:

You don't want to contaminate your work area, especially with antibiotic-resistant bacteria.

You may have other bacteria on your hands, which are also resistant to that antibiotic.

The bacteria you are using may be pathogenic (cause illness).

It makes cleaning up after an experiment easier.

The antibiotic may not have an effect on other microorganisms, such as mold.

Explanation / Answer

The answers to the above question is that:

This can lead to the plating of the inappropriate strain or species of bacteria than the one originally desired. Thus, sterile lab techniques must be followed in order to get the best results for your experiment.

In order not to contaminate your work space and yourself, sterile lab techniques have to be followed especially when dealing with virulent/pathogenic bacteria.

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