microbial genetics Flashcards
these agents in the lab can induce mutations
UV light, X rays, Radioactive substances, certain chemical agents, viruses
ways in which bacteria acquire new genetic information
lsyogenic conversion, transduction, transformation, conjugation, transposition, plasmid acquisition
plasmid acquisition
when an organism acquires a plasmid, they acquire new genes
a plasmid is
an extrachromosomal DNA
an episome is a plasmid that
can exist only by itself or can integrate into the chromosome
Lysogenic conversion is when
DNA comes from a bacteriophage and viral info is exchanged
transduction
bacteriophage carries genetic information from one bacteria to another
transformation
uptake of DNA fragments from the environment
conjugation
attachment through a sex plus to another bacterial cell and genetic material (usually a plasmid) is transferred to the recipient cell
the most frequent means of transfer resistance is
conjugation
transposition
transposons move from one DNA site to another within the same organism