Exam 10: Genetics of Bacteria and Archaea

The production of a functional gene product by transforming bacteria that lack a lacZ gene with a plasmid containing a lacZ gene is known as

All Hfr strains integrate into the chromosome at

In a prokaryotic genome,either insertion elements OR transposons are present,but both are never present at the same time.

The F (fertility)plasmid contains a set of genes that encode for the ________ proteins that are essential in conjugative transfer of DNA.

UV radiation is a useful tool in producing mutants of microbial cultures.

The mutagens 2-aminopurine and 5-bromouracil are examples of

A "point mutation" refers to mutations involving

Archaea have a unique form of conjugation involving cytoplasmic bridges for bidirectional transfer of DNA.

Proteins and nucleic acids absorb light maximally at 260 nm; hence,proteins protect cells from UV effects.

Microinsertions and microdeletions often result in ________ mutations.

Which of the following would NOT be a trait of a resistance plasmid?

Insertion sequences are found on both ends of transposons and encode for transposase.

Which of the following is most similar to lysogeny?

Most plasmids are circular rather than linear.

Bacterial mating (or conjugation)is a bidirectional process where nucleic acids (DNA or RNA)are transferred between two cells.

All Hfr strains possess an F factor integrated into the host chromosome.

F⁺ strains of Escherichia coli

Almost all plasmids are double-stranded DNA.

The minimal amount of genetic information required for specialized transduction would include

A mutant that has a nutritional requirement for growth is an example of a(n)