Biology homework 6 hours

The following statements apply to the three types of bacterial horizontal gene transfer. Indicate if the statements are true (T) or false (F). If false, provide an explantion on the reason it is false, and include a corrected statement.

 

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1.

Horizontal gene transfer is the movement of DNA from parent to offspring.

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2.

Genetic distance obtained from conjugation studies is measured in total nucleotides.

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3.

Bacteria that can uptake DNA from the environment are called competent cells.

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4.

Artificial conjugation may be used to introduce DNA into a bacterium from its

 

 

environment using laboratory procedures.

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5.

The movement of genetic material by conjugation begins at a site on the plasmid

 

 

called the start site.

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6.

Interrupted mating is a form of transformation study used to map bacterial genes.

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7.

Cotransformation and cotransduction experiments can be used to map closely linked

 

 

genes in bacteria.

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8.

Both Hfr and F+ cells can transfer bacterial genes to F- cells during conjugation.

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9.

Plasmids that can integrate into the bacterial chromosome are called episomes.

_____ 10.

 The two types of bacteriophage life cycles are termed lytic and lysogenic.