Question 7
1 pts
In Griffith's experiment, when mice were exposed to the heat killed S bacteria
that had been mixed with live R bacteria they died, even though live R
bacteria are the non-virulent strain.
What allowed the S strain of this bacteria to kill the mice? (select all that
apply)
a) the polysaccharide capsule around the bacterial cell
b) the mice infected with S bacteria have a deficient immune system
c) the S bacteria cannot be detected efficiently by the mouse's immune system
d) the S bacteria contains genes that attack the mouse's immune cells