Nodule Formation

Consider the following steps involved in nodule formation in the root of a legume. (i). Bacteria release chemicals and enzymes. (ii). Bacteria stop dividing and form bacteroides. (iii). Roots secrete chemical atractants. (iv). Formation of infection thread. (v). Formation of nodules. (v). Formation of nodulues. (vi). Division of infected cortical cells. (vii) Curlinig of root hair and degradation of their cell wall. (viii). Infection thread grows along with multiplication of bacteria. Arrange the steps in the right sequence and mark the correct option

Root nodule Formatio||Requirements for N2 fixation

Which of the genes are responsible for the formation of nodule in leguminosae plants ?

What are the steps involved in formation of a root nodule?

(i) Thin thread like chromosomes with a beaded appearance (ii) Appearance of recombination nodules (iii) Formation of bivalents/tetrads (iv) Terminalisation of chiasmata (v) Appearance of chiasmata Arrange the given statemetns in the correct sequence of their occurrence during prophase I.

(i) Thin thread like chromosomes with a beaded appearance (ii) Appearance of recombination nodules (iii) Formation of bivalents/tetrads (iv) Terminalisation of chiasmata (v) Appearance of chiasmata Identify the different stages with respect to the above given features and select the correct option.

Root nodules occur in plants of family :-

Reduced nodulation occurs due to deficiency of