- 1(current)
Q. No.The blue and white selectable markers have been developed which differentiate recombinant colonies from non-recombinant colonies on the basis of their ability to produce colour in the presence of a chromogenic substrate.
Given below are two statements about this method:
Given below are two statements about this method:
| Statement I: | The blue coloured colonies have DNA insert in the plasmid and they are identified as recombinant colonies. |
| Statement II: | The colonies without blue colour have DNA insert in the plasmid and are identified as recombinant colonies. |
| 1. | Statement I is correct; Statement II is incorrect |
| 2. | Statement I is incorrect; Statement II is correct |
| 3. | Both Statement I and Statement II are correct |
| 4. | Both Statement I and Statement II are incorrect |
Subtopic: Â Selection of Recombinant Transformants |
 66%
From NCERT
NEET - 2025
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In recombinant DNA technology antibiotics are used:
1. to keep medium bacteria-free
2. to detect alien DNA
3. to impart disease-resistance to the host plant
4. as selectable markers
Subtopic: Â Selection of Recombinant Transformants |
 61%
From NCERT
NEET - 2020
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NEET 2026 - Target Batch - Vital
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NEET 2026 - Target Batch - Vital
In Lederberg's replica plating experiment, what shall be used to obtain streptomycin resistant strain?
1. Minimal medium and streptomycin
2. Complete medium and streptomycin
3. Only minimal medium
4. Only complete medium
Subtopic: Â Selection of Recombinant Transformants |
 59%
From NCERT
AIPMT - 2001
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NEET 2026 - Target Batch - Vital
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NEET 2026 - Target Batch - Vital
- 1(current)
Q. No.
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