Dr. Tonegawa won the Nobel Prize for discovering
how the body can constantly change its genes to
fashion a seeming unlimited number of antibodies,
each specifically targeted at an invading microbe or
foreign substance.
(A)seeming unlimited number of antibodies,
each specifically targeted at
(B)seeming unlimited number of antibodies,
each targeted specificallyto
(0seeming unlimited number of antibodies,
all specifically targeted at
(D)seemingly unlimited number of antibodies,
all of them targeted specificallyto
(E)seemingly unlimited number of antibodies,
each targeted specifically at