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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.
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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
- The arthropod which is known as living fossil is
- In which of the following forms is iron absorbed by plants
- Pacinian corpuscles occur in the skin of certain parts of body in mammals. These are
- In flagellar membrane which enzyme catalyses ATP
- Leeches are usually
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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