Consider conjugation in Escherichia coli. In which of the following matings would chromosomal genes ...

Consider conjugation in Escherichia coli. In which of the following matings would chromosomal genes be transferred most frequently?

A) F+ F-
B) F- F-
C) Hfr F-
D) Hfr F+

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

A) complementation.
B) mitosis.
C) transfection.
D) reversion.

A point mutation refers to mutations involving

A) a base-pair substitution.
B) the gain of a base pair (microinsertion).
C) the deletion of a base pair (microdeletion).
D) a substitution, deletion, or addition of one base-pair.

A deleterious mutation in recA results in

A) a decrease in specific recombination.
B) a decrease in homologous recombination.
C) an increase in homologous recombination.
D) no change in either general or specific recombination.

A strain of an organism with an increased mutation rate is known as a(n)

A) adaptive mutagen strain.
B) hypermutable or mutator strain.
C) encoded dnaQ system.
D) phenotypic variation.

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Consider conjugation in Escherichia coli. In which of the following matings would chromosomal genes ...

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