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Nitrogen fixation in root nodules of Alnus is brought about by:
Options
(a) Bradyrhizobium
(b) Clostridium
(c) Frankia
(d) Azorhizobium
Correct Answer:
Frankia
Explanation:
The most common symbiotic association of legume and bacteria on roots is as nodules, which are small outgrowth on the roots. The microbe Frankia is symbiotic in root nodules of several non-leguminous plants like Casurina and Alnus. Both Rhizobium and Frankia are free lilving in soil but can fix atmospheric nitrogen as symbionts.
Related Questions: - Bowman’s glands are located in the
- A test cross is carried out to
- How many female flowers occur in a cyathium?
- Which one of the following acids is a derivative of carotenoids?
- Retina of eye is analogous to which part of camera?
Question Type: Memory
(964)
Difficulty Level: Easy
(1008)
Topics: Plant Physiology
(28)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Bowman’s glands are located in the
- A test cross is carried out to
- How many female flowers occur in a cyathium?
- Which one of the following acids is a derivative of carotenoids?
- Retina of eye is analogous to which part of camera?
Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Plant Physiology (28)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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