Which of the following statements about Rhizobium legume nodule formation is not correct ?

Question

Which of the following statements about Rhizobium legume nodule formation is not correct ? (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.

Tardigrade Admin · Accepted Answer

Correct answer is (d) The infection thread can fuse with any root cell of an appropriate legume species.

Q. Which of the following statements about Rhizobium legume nodule formation is not correct ?

Rhizobium can only fix nitrogen after it becomes a bacteroid within a root cortex cell.

Rhizobium induces invagination of root hairs.

Within an infection thread, Rhizobium is still extracellular to the plant.

The infection thread can fuse with any root cell of an appropriate legume species.

Correct answer is (d) The infection thread can fuse with any root cell of an appropriate legume species.