Horizontal Gene Transfer in Bacteria

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Animation: Horizontal gene transfer

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Animation Assessment

Question 1 of 4

Bacteria and Archaea exhibit enormous diversity between species. However, within a given species we can also find considerable genetic diversity. This diversity can arise as a result of horizontal gene transfer. Which of the following is not considered a mechanism of horizontal gene transfer?

Question 1 choicesChoice A., mutationChoice B., conjugationChoice C., transformationChoice D., transductionChoice E., transfer of genes on plasmids from one cell to another

Correct.

Incorrect.

Question 2 of 4

In an experiment researchers combined heat-killed virulent pneumonia bacteria with living nonvirulent (harmless) bacteria and found that some of the nonvirulent bacteria could become virulent. This most likely occurred as a result of:

Question 2 choicesChoice A., conjugation.Choice B., transformation.Choice C., transduction.Choice D., mutation.

Correct.

Incorrect.

Question 3 of 4

Many antibiotic resistant genes in bacteria are found on plasmids which can be easily exchanged with other bacteria in the process of:

Question 3 choicesChoice A., conjugation.Choice B., transformation.Choice C., transduction.Choice D., mutation.

Correct.

Incorrect.

Question 4 of 4

Genetic engineers sometimes insert genes of interest into a viral genome in order to get the gene into a target bacterium like E. coli so that it can be expressed. What natural process are they exploiting to achieve this genetic engineering?

Question 4 choicesChoice A., conjugationChoice B., transformationChoice C., transductionChoice D., mutation

Correct.

Incorrect.

Assessment Summary

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