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Doctors Medicines MCQs Q&A

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Assertion (A) Leguminous plants are nitrogen fixers.
Reason (R) Leguminous plants have Rhizobium in their root nodules.
When subtracting the square root of the square root of 625 from the square root of the square root of 1296, which of the following number is square root of the difference?
Which of the following represents the correct matching set.   Type of root   Example a) Taproot root i) Banyan tree b) Adventitious root ii) Carrot c) Prop root iii) Sugarcane d) Stilt root iv) Sweet potato
Consider the following statements and choose the correct answer:
1. Intense or strong light retards the growth of shoot
2. Shade plants are shorter and stockier than sun plants
3. Shade plants have dense covering of hairs while sun plants are less hairy
4. The stems of shade plants are taIler and more branched than that of sun plants
Plants have been used as healers and health rejuvenators since times immemorial. More than half the drugs under clinical use owe their origin to plants. The Glossary of Indian Medicinal Plants lists 3000 plants. Which part of the plants is used most for medicinal properties ? 
Which of following plants do NOT fix atmospheric nitrogen due to a mutualistic symbiotic relationship with rhizobia bacteria found in their root nodules?
Which of the following plants do NOT form Root Nodules having Nitrogen fixing bacteria in it
In which of the following plants root nodules are not formed by Rhizobium ?
S1:Palaeobotany is the study of fossil plants preserved in rocks dating back in millions of years.
P :Records of the history of the world are contained in fossils.
Q :Through the ages, plants have evolved from simple to more complex forms.
R :First there were water plants then land plants appeared during the Paleozoic era.
S :But since the fossil remains appear locked in rock layers, they are closely related to the geologist area of investigation.
S6:The fossil plants indicate the age of the rock, and also point to facts regarding climate, temperature and topography.

The Proper sequence should be:
The bacterium which lives symbiotically in the root nodules of leguminous plants and fix atmospheric nitrogen is: