Question
Nodules with nitrogen-fixing bacteria are found in
cotton
gram
mustard
wheat
Solution
B.
gram
Leguminous plants such as grams, beans, peas soyabeans, peanuts, alfalfa and clover contain root nodules. Later are formed due to symbiotic association between roots of leguminous plane and bacterium Rhizobium. The plants furnish anaerobic conditions and growth nutrients for the bacteria and the bacteria fix nitrogen to the plant.
