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Q. No.Consider the given two statements:
I:
Spores and crystalline insecticidal proteins produced by B. thuringiensis are now used as insecticides in organic farming.
II:
Because of their specificity, these pesticides are regarded as environmentally friendly, with little or no effect on humans, wildlife, pollinators, and most other beneficial insects.
1. Both I and II are correct and II explains I
2. Both I and II are correct but II does not explain I
3. I is correct but II is incorrect
4. I is incorrect but II is correct
Subtopic: Bt Crops |
72%
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During organogenesis in plant tissue culture:
1. an excess of auxin will often result in a proliferation of roots, while an excess of cytokinin yield shoots
2. an excess of auxin will often result in a proliferation of roots, while an excess of gibberellins yield shoots
3. an excess of cytokinin will often result in a proliferation of roots, while an excess of gibberellins yield shoots
4. an excess of gibberellins will often result in a proliferation of roots, while an excess of ethylene yield shoots
1. an excess of auxin will often result in a proliferation of roots, while an excess of cytokinin yield shoots
2. an excess of auxin will often result in a proliferation of roots, while an excess of gibberellins yield shoots
3. an excess of cytokinin will often result in a proliferation of roots, while an excess of gibberellins yield shoots
4. an excess of gibberellins will often result in a proliferation of roots, while an excess of ethylene yield shoots
Subtopic: Plant Tissue Culture |
70%
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Plant tissue culture may offer certain advantages over traditional methods of propagation, including all the following except:
| 1. | The production of plants that exhibit large variations from the parent plants. |
| 2. | Quickly production of mature plants. |
| 3. | The regeneration of whole plants from plant cells that have been genetically modified. |
| 4. | Storage of genetic plant material to safeguard native plant species. |
Subtopic: Plant Tissue Culture |
58%
From NCERT
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Consider the two statements:
I. Diseases such as sickle cell disease that are caused by autosomal recessive disorders may be a good candidate for gene therapy treatment.
II. For such disorders, a person's normal phenotype or cell function may be restored in cells that have the disease by a normal copy of the gene that is mutated.
1. Both I and II are correct and II explains I
2. Both I and II are correct but II does not explain I
3. I is correct but II is incorrect
4. Both I and II are incorrect
I. Diseases such as sickle cell disease that are caused by autosomal recessive disorders may be a good candidate for gene therapy treatment.
II. For such disorders, a person's normal phenotype or cell function may be restored in cells that have the disease by a normal copy of the gene that is mutated.
1. Both I and II are correct and II explains I
2. Both I and II are correct but II does not explain I
3. I is correct but II is incorrect
4. Both I and II are incorrect
Subtopic: Gene Therapy |
67%
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A crop gets infected with a certain virus and the farmers of the area suffer immense financial loss. You have been asked to help the farmers and you decide to improve the crop by raising virus-free plants through plant tissue culture. The explant you will choose must be:
| 1. | Meristem | 2. | Anther |
| 3. | Embryo | 4. | Internode |
Subtopic: Plant Tissue Culture |
90%
From NCERT
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| Assertion (A): | Whole plants can be regenerated from any part of a plant taken out and grown in a test tube, under sterile conditions in special nutrient media |
| Reason (R): | Every living plant cell is totipotent |
| 1. | Both (A) and (R) are True and the (R) is the correct explanation of the (A) |
| 2. | Both (A) and (R) are True but the (R) is not the correct explanation of the (A) |
| 3. | (A) is True but (R) is False |
| 4. | Both (A) and (R) are False |
Subtopic: Plant Tissue Culture |
67%
From NCERT
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| Assertion (A): | Transgenic animals can be specifically designed to allow the study of how genes are regulated, and how they affect the normal functions of the body and its development, e.g., study of complex factors involved in growth such as insulin-like growth factor. |
| Reason (R): | By introducing genes from other species that alter the formation of this factor and studying the biological effects that result, information is obtained about the biological role of the factor in the body. |
| 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 |
Subtopic: Transgenic Microbes & Animals |
85%
From NCERT
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| Assertion(A): | Delivery of ADA cDNA into lymphocytes is not a permanent cure for ADA deficiency |
| Reason(R) | Lymphocytes do not express ADA gene. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of the (A) |
| 2. | Both (A) and (R) are True but (R) is not the correct explanation of the (A) |
| 3. | (A) is True but (R) is False |
| 4. | Both (A) and (R) are False |
Subtopic: Gene Therapy |
60%
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Biopiracy is:
| 1. | the exploration of natural sources for small molecules, macromolecules and biochemical and genetic information that could be developed into commercially valuable products. |
| 2. | exploitation of a region's biological resources or indigenous knowledge unethically and without providing fair compensation. |
| 3. | the use of living organisms, like microbes and bacteria, in the removal of contaminants, pollutants, and toxins from soil, water, and other environments |
| 4. | the process of developing a crop with bioavailable micronutrients in its edible parts. |
Subtopic: Ethical Issues |
86%
From NCERT
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With the help of ELISA, infection by pathogen can be detected by the presence in a sample of:
I. antigens of the pathogen
II. antibodies synthesized against the pathogen
I. antigens of the pathogen
II. antibodies synthesized against the pathogen
| 1. | Only I | 2. | Only II |
| 3. | Both I and II | 4. | Neither I nor II |
Subtopic: Molecular Diagnosis |
81%
From NCERT
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