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Choose the incorrect statement regarding mycorrhiza.

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Important Questions on Microbes in Human Welfare

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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 33 - Microbes in Human Welfare>MCQS CORNER>Q 86

Which one of the following pairs is correctly matched?

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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 33 - Microbes in Human Welfare>MCQS CORNER>Q 87
Match Column I with Column II and select the correct answer from the given codes.
  Column I   Column II
(a) Mycorrhizae (i) Azadirachtin
(b) Bacillus thuringiensis (ii) Phosphorus nutrition
(c) Root nodules (iii) Leghaemoglobin
(d) Biopesticide (iv) Bioinsecticide
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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 33 - Microbes in Human Welfare>MCQS CORNER>Q 88
Cyanobacteria are
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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 33 - Microbes in Human Welfare>MCQS CORNER>Q 89

A nitrogen-fixing microbe associated with the fern Azolla in rice fields is

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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 33 - Microbes in Human Welfare>MCQS CORNER>Q 90

Azolla pinnata has been found to be an important biofertilizer for paddy crops due to the presence of______.

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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 33 - Microbes in Human Welfare>MCQS CORNER>Q 91
Which of the following is widely used as a successful biofertilizer in Indian rice fields?
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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 33 - Microbes in Human Welfare>MCQS CORNER>Q 92

Study the following statements and select the correct ones.
(i) Methanogens are archaebacteria that produce methane in marshy areas.
(ii) Nostoc is a filamentous blue-green alga that fixes atmospheric nitrogen.
(iii) Many members of the genus Glomus form mycorrhiza.

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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 33 - Microbes in Human Welfare>MCQS CORNER>Q 93

Which of the following statement(s) is/are correct?