What is the right sequence of steps during infection of plants by nitrogen-fixing bacteria?
A) Rhizobia release Nod factors;roots release flavonoids;rhizobia proliferate inside of root hair;infection thread grows into the root cortex;nodule forms.
B) Rhizobia release flavonoids;roots release Nod factors;rhizobia proliferate inside of root hair;infection thread grows into the root cortex;nodule forms.
C) Roots release flavonoids;rhizobia release Nod factors;rhizobia proliferate inside of root hair;nodule forms;infection thread grows into the root cortex.
D) Roots release flavonoids;rhizobia release Nod factors;rhizobia proliferate inside of root hair;infection thread grows into the root cortex;nodule forms.
E) Roots release Nod factors;rhizobia release flavonoids;rhizobia proliferate inside of root hair;nodule forms;infection thread grows into the root cortex.
Correct Answer:
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