Question
Which of the following is a characteristic feature of a
legume root nodule infected by Rhizobium, allowing for effective nitrogen fixation?Solution
Leghemoglobin is an oxygen-binding protein in nodules that regulates oxygen supply for nitrogenase, the enzyme responsible for nitrogen fixation. It gives the nodule a pinkish color and enables efficient N₂ fixation.
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A’s age is 160% of what he was 4 years ago, But 80% of what it will be after 4 years. What is his present age?
