Who first observed that legumes can utilize atmospheric nitrogen?
Show Hint
- M. W. Beijerinck
- J. B. Boussingault
- A. I. Virtanen
- G. S. Sekhon
The Correct Option is B
Solution and Explanation
Top Questions on Nitrogen Fixation
- Which of the following organisms cannot fix nitrogen? A. Azotobacter
B. Oscillatoria
C. Anabaena
D. Volvox
E. Nostoc
Choose the correct answer from the options given below:- NEET (UG) - 2025
- Biology
- Nitrogen Fixation
- Which Rhizobium species fixes nitrogen in the soybean crop?
- UPCATET - 2024
- Biology
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- Match List-I with List-II:
List-I (Function) List-II (Organism) (A) Nitrogen fixation (bacterium) (I) Saccharomyces (B) Phosphorous absorption (II) Azospirillum (C) Nitrogen fixation (cyanobacterium) (III) Glomus (D) Ethanol Production (IV) Oscillatoria - CUET (UG) - 2024
- Biology
- Nitrogen Fixation
- Which one of the following conversions belongs to nonsymbiotic nitrogen fixation?
- GATE ES - 2024
- Environmental Chemistry
- Nitrogen Fixation
- Sequence the principal stages of biological nitrogen fixation in their correct order of occurrence.
(A) Formation of infection thread
(B) Rhizobium multiply to colonize.
(C) Curling of root hair.
(D) Differentiation of cortical cells into nitrogen fixing cells- CUET (PG) - 2024
- Agriculture
- Nitrogen Fixation
Questions Asked in ICAR AIEEA exam
Given below are two statements:
Statement (I): Voltinism in insects is number of generations produced in a year.
Statement (II): Morus alba is a perennial tree in northern India.
Choose the most appropriate answer from the options given below:- ICAR AIEEA (PG) - 2024
- General Knowledge Based
Given below are two statements:
Statement (I): Tukra disease in mulberry is caused by whitefly.
Statement (II): Shellac is a resin secreted by female lac insect on host plant.
Choose the most appropriate answer from the options given below:- ICAR AIEEA (PG) - 2024
- Insect Ecology
Given below are two statements:
Statement (I): Butterflies with erratic darting flights belong to family Hesperiidae.
Statement (II): Larvae with tapering at both ends without dorsal setae.- ICAR AIEEA (PG) - 2024
- Insect Ecology
Given below are two statements:
Statement (I): Bean yellow mosaic virus is transmitted by Aphis glycines.
Statement (II): Chilli mosaic virus is transmitted by Aphis craccivora.- ICAR AIEEA (PG) - 2024
- Mycology & Plant Pathology
Given below are two statements:
Statement (I): Virus transmission by whitefly is persistent and circulative type.
Statement (II): Virus transmission by hoppers is circulative and usually propagative type.- ICAR AIEEA (PG) - 2024
- Mycology & Plant Pathology
