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Q. No.Assertion (A): Somatic embryo is also called non-zygotic embryo.
Reason (R): Zygote is not involved in somatic embryo formation.
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
Reason (R): Zygote is not involved in somatic embryo formation.
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
Subtopic: Â Plant Tissue Culture |
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Given below are a few statements regarding somatic hybridization. Choose the correct statements.
| I. | Protoplasts of different cells of the same plant are fused. |
| II. | Protoplasts from cells of different species can be fused. |
| III. | Treatment of cells with cellulase and pectinase is mandatory. |
| IV. | The hybrid protoplast contains characters of only one parental protoplast. |
1. I and III
2. I and II
3. I and IV
4. II and III
Subtopic: Â Plant Tissue Culture |
 67%
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Given below are two statements:
Statement I: The genetic constitution of a plant is unaffected in vegetative propagation
Statement II: Totipotency of cells enables us to micropropagate plants
In light of the above statements, choose the most appropriate answer from the options given below.
1. Both statement I and statement II are true
2. Both statement I and statement II are false
3. Statement I is correct but statement II is false
4. Statement I is incorrect but statement II is true
Statement I: The genetic constitution of a plant is unaffected in vegetative propagation
Statement II: Totipotency of cells enables us to micropropagate plants
In light of the above statements, choose the most appropriate answer from the options given below.
1. Both statement I and statement II are true
2. Both statement I and statement II are false
3. Statement I is correct but statement II is false
4. Statement I is incorrect but statement II is true
Subtopic: Â Plant Tissue Culture |
 83%
From NCERT
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Given below are two statements :
In light of the above statements, choose the most appropriate answer from the options given below:
1. Both Statement I and Statement II are true
2. Both Statement I and Statement II are false
3. Statement I is true and Statement II is false
4. Statement I is false but Statement II is true
| Statement I: | Proteins encoded by genes cryIAc and cryllAb control corn borer, that of crylAb control the cotton bollworms |
| Statement II: | Bt toxin protein exist as inactive protoxins but once an insect ingests the inactive toxin, it is converted into an active form of toxin due to the alkaline pH of the gut |
1. Both Statement I and Statement II are true
2. Both Statement I and Statement II are false
3. Statement I is true and Statement II is false
4. Statement I is false but Statement II is true
Subtopic: Â Bt Crops |
 77%
From NCERT
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Given below are two statements:
In light of the above statements, choose the most appropriate answer from the options given below.
1. Both statement I and statement II are true
2. Both statement I and statement II are false
3. Statement I is correct but statement II is false
4. Statement I is incorrect but statement II is true
| Statement I: | Bacillus thuringiensis forms protein crystals which contain a toxin that kills certain insects but not Bacillus because Bt toxin protein exists as inactive protoxins in Bacillus. |
| Statement II: | Bacillus thuringiensis forms protein crystals which contain a toxin that kills certain insects but not Bacillus because toxin requires alkaline pH available in the gut of insects and which solubilises the crystals in order to convert into an active form. |
1. Both statement I and statement II are true
2. Both statement I and statement II are false
3. Statement I is correct but statement II is false
4. Statement I is incorrect but statement II is true
Subtopic: Â Bt Crops |
 91%
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Read the following statements carefully.
How many of the above statements are correct?
1. 1
2. 2
3. 3
4. 4
| (i) | PCR is used to detect mutations in genes in suspected cancer patients. |
| (ii) | A direct method to insert a foreign gene into plant cells is micro-injection. |
| (iii) | The first transgenic cow, Rosie, produced human protein-enriched milk, i.e., 5.4 grams per litre. |
| (iv) | RNAi takes place in all eukaryotic organisms as a method of cellular defense. |
1. 1
2. 2
3. 3
4. 4
Subtopic: Â Molecular Diagnosis |Â Transgenic Microbes & Animals |
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Match column I with column II and select the correct option.
1. a(ii), b(iv), c(i), d(iii)
2. a(i), b(ii), c(iii), d(iv)
3. a(iv), b(ii), c(i), d(iii)
4. a(ii), b(iv), c(iii), d(i)
| Column I | Column II | ||
| a. | Patent on Basmati rice by an American company | (i) | 1983 |
| b. | First clinical gene therapy | (ii) | 1997 |
| c. | Humulin by Eli Lilly Co. | (iii) | 1972 |
| d. | Construction of first recombinant DNA | (iv) | 1990 |
1. a(ii), b(iv), c(i), d(iii)
2. a(i), b(ii), c(iii), d(iv)
3. a(iv), b(ii), c(i), d(iii)
4. a(ii), b(iv), c(iii), d(i)
Subtopic: Â Ethical Issues |
 77%
From NCERT
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Read the following statements carefully.
Statement A: Increased agricultural yields have been partly due to the use of better management practices and use of agrochemicals, but mainly due to the use of improved crop varieties.
Statement B: GMOs increased reliance on chemical pesticides by producing pesticide-resistant crops.
1. Both statements A and B are correct
2. Both statements A and B are incorrect
3. Statement A is correct, B is incorrect
4. Statement A is incorrect, B is correct
Statement A: Increased agricultural yields have been partly due to the use of better management practices and use of agrochemicals, but mainly due to the use of improved crop varieties.
Statement B: GMOs increased reliance on chemical pesticides by producing pesticide-resistant crops.
1. Both statements A and B are correct
2. Both statements A and B are incorrect
3. Statement A is correct, B is incorrect
4. Statement A is incorrect, B is correct
Subtopic: Â Intro to Agri Applications |
From NCERT
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With regard to insulin choose the incorrect statement(s).
Choose the correct answer from the options given below.
1. (a) and (b) only
2. (c) and (d)
3. (a), (b) and (c)
4. (d) only
| a. | C-peptide is found attached with both A and B chains of insulin with the help of disulphide bonds. |
| b. | In 1983, both A and B chains were produced by introducing alien genes in plasmid of same E.coli by Eli Lilly. |
| c. | A-peptide and B-peptide of insulin are interconnected by peptide bonds in mature insulin. |
| d. | Insulin from an animal source may cause allergy or other types of reactions in some diabetic patients. |
1. (a) and (b) only
2. (c) and (d)
3. (a), (b) and (c)
4. (d) only
Subtopic: Â Med Applications & Humulin |
 56%
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| Assertion (A): | Insulin used for diabetes was earlier extracted from the pancreas of slaughtered cattle and pigs but now it is not used. |
| Reason (R): | Aarti along with some other patients took insulin injections in which insulin was from an animal source and they manifested an allergic response to that. |
| 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. |
Subtopic: Â Med Applications & Humulin |
 81%
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