Multiple choice

On the roots of which of the following plants does the microbe Frankia produce nitrogen-fixing nodules?

  1. Alfalfa

  2. Sweet clover

  3. Alnus

  4. Sweet pea

  5. Clover beans

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This is the correct option. On the roots of alnus plant, the microbe Frankia produces nitrogen-fixing nodules. The microbe Frankia as a symbiont can fix atmospheric nitrogen.