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Q. No.Assertion (A): Inbreeding increases homozygosity.
Reason (R): Inbreeding exposes harmful recessive genes that are eliminated by selection
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. Both (A) and (R) are false.
54%
From NCERT
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Assertion (A): A cow is administered hormone with FSH –like activity under the programme called MOET for herd improvement.
Reason (R): FSH suppresses follicular maturation and super ovulation
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. Both (A) and (R) are false.
Reason (R): FSH suppresses follicular maturation and super ovulation
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. Both (A) and (R) are false.
70%
From NCERT
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All the following diseases in plants are caused by a fungal pathogen except:
1. Rust of wheat
2. Smut of bajra
3. Black rot of crucifers
4. Red rot of sugarcane
1. Rust of wheat
2. Smut of bajra
3. Black rot of crucifers
4. Red rot of sugarcane
70%
From NCERT
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In mung bean, mutations were used to induce resistance to:
I: yellow mosaic virus
II: powdery mildew
1. Only I
2. Only II
3. Both I and II
4. Neither I nor II
I: yellow mosaic virus
II: powdery mildew
1. Only I
2. Only II
3. Both I and II
4. Neither I nor II
75%
From NCERT
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Marine fishes that are eaten include all the following except:
1. Common carp
2. Sardines
3. Mackerel
4. Pomfrets
1. Common carp
2. Sardines
3. Mackerel
4. Pomfrets
81%
From NCERT
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Inbreeding is important in animal husbandry because it:
1. increases vigour
2. improves the breed
3. increases heterozygosity
4. increases homozygosity
1. increases vigour
2. improves the breed
3. increases heterozygosity
4. increases homozygosity
84%
From NCERT
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What are the desirable traits in sugarcane for a farmer?
| 1. | Thin stem, long internodes, high sugar content and disease resistant |
| 2. | Thick stem, long internodes, high sugar content and disease resistant |
| 3. | Thick stem, short internodes, high sugar content, disease resistant |
| 4. | Thick stem, low sugar content and disease susceptible |
87%
From NCERT
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Which blue green alga can be an alternate source of proteins for animal and human nutrition?
1. Chlorella
2. Cladophora
3. Methylophilus
4. Spirulina
59%
From NCERT
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Which of the following properties is the reason that whole plants can be regenerated from explants?
| 1. | Phenotypic plasticity | 2. | Cellular totipotency |
| 3. | Open growth | 4. | Open differentiation |
Subtopic: Plant Tissue Culture |
93%
From NCERT
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The best explant for regenerating virus free plantlets would be:
| 1. | Embryo | 2. | Meristem |
| 3. | Anther | 4. | Endosperm |
Subtopic: Plant Tissue Culture |
94%
From NCERT
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