- 1(current)
Q. No.| Assertion (A): | Most of the orchid species seedlings cannot proceed with development in the absence of symbiotic fungi. |
| Reason (R): | Lichens contain symbiotically associated fungi. |
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A) |
| 2. | Both (A) and (R) are true and (R) is not the correct explanation of (A) |
| 3. | (A) is true, (R) is false |
| 4. | (A) is false, (R) is true |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyRead the given statements and select the correct option:
| A - | Trichoderma is an effective biocontrol agent of several plant pathogens. |
| B - | B. thuringiensis is effective against larvae of bollworm. |
1. Both A and B are correct
2. Both A and B are incorrect
3. Only A is correct
4. Only B is correct
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMatch the items in column "A' and coloum 'B' and choose the correct answer
| Column I | Column II |
| A. Lady bird | (i) Methano bacterium |
| B. Mycorrhiza | (ii) Trichoderma |
| C. Biological control | (iii) Aphids |
| D. Biogas | (iv) Glomus |
The correct answer is
| A | B | C | D | |
| (1) | ii | iv | iii | i |
| (2) | iii | iv | ii | i |
| (3) | iv | i | ii | iii |
| (4) | iii | ii | i | iv |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMatch the following columns and select the correct option:-
|
Column I |
Column II |
||
|
(a) |
Dragonflies |
(i) |
Biocontrol agents of several plant pathogens |
|
(b) |
Bacillus thuringiensis |
(ii) |
Get rid of mosquitoes |
|
(c) |
Glomus |
(iii) |
Narrow spectrum insecticidal applications |
|
(d) |
Baculoviruses |
(iv) |
Biocontrol agents of lepidopteran plant pests |
|
(v) |
Absorb phosphorus from soil |
| Options: | (a) | (b) | (c) | (d) |
| 1. | (iii) | (v) | (iv) | (i) |
| 2. | (ii) | (i) | (iii) | (iv) |
| 3. | (ii) | (iii) | (iv) | (v) |
| 4. | (ii) | (iv) | (v) | (iii) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyReason(R): The development of methods of genetic engineering has helped scientists to introduce B. thuringiensis toxin genes into plants.
Choices for Assertions and reasons:
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyReason(R): A key belief of the organic farmer is that biodiversity furthers health.
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
3. (A) is true, but (R) is false.
4. (A) is false, but (R) is true.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology- 1(current)
Q. No.
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