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1.
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Genetic diversity in prokaryotes is mostly due to
a. | crossing over between chromosomes. | b. | independent assortment of
chromosomes. | c. | genetic mutation combined with rapid reproduction. | d. | binary
fission. |
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2.
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What is transformation?
a. | the injection of foreign DNA into a prokaryotic cell by a
bacteriophage | b. | the passing of DNA from one bacterium to another through pili | c. | the uptake of
foreign DNA by a prokaryotic cell | d. | a general term for any exchange of DNA between
prokaryotic cells |
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3.
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What is transduction?
a. | the injection of foreign DNA into a prokaryotic cell by a
bacteriophage | b. | the passing of DNA from one bacterium to another through pili | c. | the uptake of
foreign DNA by a prokaryotic cell | d. | a general term for any exchange of DNA between
prokaryotic cells |
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4.
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What is conjugation?
a. | the injection of foreign DNA into a prokaryotic cell by a
bacteriophage | b. | the passing of DNA from one bacterium to another through pili | c. | the uptake of
foreign DNA by a prokaryotic cell | d. | a general term for any exchange of DNA between
prokaryotic cells |
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5.
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What is a plasmid and why are they important?
a. | the main bacterial chromosome that is responsible for the function of the
cell | b. | a small ring of DNA that contains genes that are not necessary for an organism to
survive, but may provide an environmental advantage such as antibiotic resistance | c. | foreign DNA that has
been added to a prokaryotic cell and disrupts its normal cellular functions | d. | DNA that originated
in a separate species of prokaryote and provides a benefit to the organism into which is has been
incorporated |
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6.
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What determines the formation of pili in E.coli cells?
a. | the presence of a piece of DNA called the F factor | b. | the absence of the F
factor causes the pilus to form in the recipient cell | c. | both cells must have the F factor, which causes
the pili to form and fuse together | d. | pili are induced by
bacteriophages |
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