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Genetic Transfer in Bacteria: Prevent the rise of superbugs Test with
Answers Rated A
What
can
you
conclude
from
the
MEGA-plate
experiment?
How do the progeny of an antibiotic-sensitive bacterium
become resistant?
Some
bacteria
acquire
mutations
that
make
them
some-
what
resistant;
eventually,
additional
mutations
result
in
highly resistant strains
The
chromosomes
were
altered
by
mutation
What
is
the
best
definition
of
a
mutation?
A random
change
in a
DNA sequence
What
do
we
call
circular
double-stranded
DNA
that
is
able
to self-replicate and is approximately 1-5% of the size of a
bacterial chromosome?
What kind of cell functionalities can we find encoded for
on a plasmid?
We need tp set up some cultures on blood agar plates
with antibiotics: a mixture of antibiotic-susceptible A. bau-
manii and and antibiotic-resistant P. aeruginosa, along
with various controls. If we see A. baumanii colonies on
the plate with A. baumanii and P. aeruginosa after the
incubation, what could that mean?
Plasmid
Antibiotic
resistance
A. baumanii is somehow able to acquire resistance from
the P. aeruginosa
What
can
you
conclude
from
the
experiment?
Acinetobacter
baumanii
acquired
a
new
resistance
against
the
antibiotics
Name the first step in the transformation process using
the pink buttons on the bottom of the screen
Binding
Name
the
second
step
Fragmentation
Name
the
third
step
Transport
Name
the
fourth
step
Uptake
Name the final step if transformation is unsuccessful
Lysis
Name the final step if transformation is successful
Integration
Natural
competence
