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Selectable marker helps
| 1. | To identify transformants |
| 2. | To identify recombinants |
| 3. | To identify non- recombinants |
| 4. | To eliminate transformants |
Subtopic: Â Selectable Markers: I |Â Selectable Markers: II |Â Selectable Markers |
 55%
Level 3: 35%-60%
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A selectable marker is used to:
| 1. | help in eliminating the non-transformants so that the transformants can be regenerated. |
| 2. | identify the gene for the desired trait in an alien organism. |
| 3. | select a suitable vector for transformation in a specific crop. |
| 4. | mark a gene on a chromosome for isolation using a restriction enzyme. |
Subtopic: Â Tools: Vectors: I |Â Selectable Markers: I |Â Selectable Markers |
 83%
Level 1: 80%+
NEET - 2019
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Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R)
In the light of the above statements, choose the correct answer from the options given below:
| Assertion (A): | Polymerase chain reaction is used in DNA amplification. |
| Reason (R): | The ampicillin resistant gene is used as a selectable marker to check transformation. |
| 1. | (A) is False but (R) is True. |
| 2. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 3. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
| 4. | (A) is True but (R) is False. |
Subtopic: Â Selectable Markers: I |Â Polymerase Chain Reaction: PCR |
 78%
Level 2: 60%+
NEET - 2022
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