Arrange the principle stages in nodule formation in a leguminous plant in a correct sequence. - Sri Chaitanya Infinity Learn Best Online Courses for NCERT Solutions, CBSE, ICSE, JEE, NEET, Olympiad and Class 6 to 12

A
Curling of root-hairs→ Rhizobia multiply and colonise the surroundings of roots → Infection thread is produced→Bacteria is carried into the cortex of the root → Nodule formation initiate in the cortex of the root
B
Rhizobia multiply and colonise the surroundings of roots→ Curling of root-hairs → Infection thread is produced→Nodule formation initiate in the cortex of the root→ Bacteria is carried into the cortex of the root
C
Rhizobia multiply and colonise the surroundings of roots→ Infection thread is produced→Curling of root-hairs →Bacteria is carried into the cortex of the root → Nodule formation initiate in the cortex of the root
D
Rhizobia multiply and colonise the surroundings of roots→ Curling of root-hairs → Infection thread is produced→Bacteria is carried into the cortex of the root → Nodule formation initiate in the cortex of the root

Solution:

Principal stages in the nodule formation are:
Rhizobia multiply and colonise the surroundings of roots $\to$ Curling of root-hairs $\to$ Infection thread is produced $\to$ Bacteria is carried into the cortex of the root $\to$ Nodule formation initiate in the cortex of the root