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Q. No.Match the organism with its use in biotechnology.
(a)
Bacillus thuringiensis
(i)
Cloning vector
(b)
Thermus aquaticus
(ii)
Construction of first rDNA molecule
(c)
Agrobacterium tumefaciens
(iii)
DNA polymerase
(d)
Salmonella typhimurium
(iv)
Cry proteins
Select the correct option from the following:
(a)
(b)
(c)
(d)
1.
(iv)
(iii)
(i)
(ii)
2.
(iii)
(ii)
(iv)
(i)
3.
(iii)
(iv)
(i)
(ii)
4.
(ii)
(iv)
(iii)
(i)
Select the correct option from the following:
Subtopic: Â Bt Crops |Â Interference RNA Tech |
 89%
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NEET - 2020
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Match the following columns and select the correct option.
| Column-I | Column-II | ||
| a. | Bt cotton | (i) | Gene therapy |
| b. | Adenosine deaminase deficiency | (ii) | Cellular defense |
| c. | RNAi | (iii) | Detection of HIV infection |
| d. | PCR | (iv) | Bacillus thuringiensis |
| a | b | c | d | |
| 1. | (iii) | (ii) | (i) | (iv) |
| 2. | (ii) | (iii) | (iv) | (i) |
| 3. | (i) | (ii) | (iii) | (iv) |
| 4. | (iv) | (i) | (ii) | (iii) |
Subtopic: Â Bt Crops |Â Interference RNA Tech |Â Gene Therapy |Â Molecular Diagnosis |
 93%
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NEET - 2020
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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 |
 66%
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With regard to insulin, choose the correct options:
| (a) | C-peptide is not present in mature insulin. |
| (b) | The insulin produced by rDNA technology has C-peptide. |
| (c) | The pro-insulin has C-peptide. |
| (d) | A-peptide and B-peptide of insulin are interconnected by disulphide bridges. |
| 1. | (a), (c) and (d) only | 2. | (a) and (d) Only |
| 3. | (b) and (d) only | 4. | (b) and (c) only |
Subtopic: Â Med Applications & Humulin |
 85%
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NEET - 2021
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Consider the following statements about biomedical technologies.
Which two of the above statements are correct?
| A. | During open heart, surgery blood is circulated in the heart-lung machine. |
| B. | Blockage in coronary arteries X-ray by angiography. |
| C. | Computerized Axial Tomography (CAT) shows a detailed internal structure as seen in a section of the body. |
| D | X-ray provides clear and detailed images of organs like prostate glands and lungs. |
Which two of the above statements are correct?
1. B and D
2. C and D
3. A and C
4. A and B
Subtopic: Â Molecular Diagnosis |
AIPMT - 2008
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| 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 |
Subtopic: Â Plant Tissue Culture |
 83%
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Give below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
| Assertion (A): | In human beings, insulin is synthesized as a pro-hormone which needs to be processed before it becomes fully mature and functional. |
| Reason (R): | The extra stretch of C-peptide is to be removed from A and B peptide chain of insulin. |
In the light of the above statements, Choose the most appropriate answer from the option given below :
| 1. | (A) is True but (R) is False. |
| 2. | (A) is False but (R) is True. |
| 3. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 4. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
Subtopic: Â Med Applications & Humulin |
 78%
From NCERT
NEET - 2022
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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 |
 92%
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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.
| 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 |
 84%
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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 |
 79%
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