restriction
enzymes
serve
as
____________________
for
genetic
surgery
.
Hundreds
of
restriction
enzymes
with
different
recognition
sequences
have
been
____________________
from
various
organisms
,
so
the
knives
come
in
____________________
forms
.
DNA
cut
with
restriction
enzymes
creates
a
____________________
of
____________________
all
within
a
microcentrifuge
tube
.
Typically
we
want
only
____________________
of
the
fragments
.
