notes questions Flashcards
is plasmid required for survival?
no
advantage of plasmid for antibiotic resistance
can be more easily passed b/w bacteria
horizontal gene transfer is increased if it has a plasmid
what is vertical gene transfer?
parent to daughter
Advantage of gene on chromosome
and disadvantage
gene on chromosome is passed on to all daughter cells
but not easily based b/w bacteria
Horizontal gene transfer
gene transfer occurs between bacteria is the same generation
natural state =
wild state
change in natural state it is said to be
mutant
ames test
mutant back to
wild type
his (-) for ames test means
can’t make histadine
his (+) for ames test means
can make histidine
ex. Streptomyocin resistant (ABX) means
str R can survive in presence of str
ex. streptomyocin sensitive means
dies in the presence of streptomyosin
what is mutation rate?
how likely a mutation occurs each cell division
