A) Rhizobium can only fix nitrogen after it becomes a bacteroid within a root cortex cell.
B) Rhizobium induces invagination of root hairs.
C) Within an infection thread, Rhizobium is still extracellular to the plant.
D) The infection thread can fuse with any root cell of an appropriate legume species.
Correct Answer: D
Solution :
[d] Infective threads fuse preferentially with root cortex cells.
You need to login to perform this action.
You will be redirected in
3 sec
