Zoology · Biotechnology: Principles and Processes
NEET (UG) 2025 — Question 169
Given below are two statements : one is labelled as Statement I and the other is labelled as Statement II:
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:
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.
In the light of the above statements, choose the correct answer from the options given below :
- Option A:
Both Statement I and Statement II are correct
- Option B:
Both Statement I and Statement II is incorrect
- Option C:
Statement I is correct but Statement II is incorrect
- Option D:Correct
Statement I is incorrect but Statement II is correct
Answer: D
Step-by-step solution
Statement I: ❌ Incorrect — blue colonies are non-recombinant, not recombinant.
Statement II: ✅ Correct — white colonies have insert and are recombinant.
Answer key and solution verified before publishing.
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- Exam
- NEET (UG) 2025
- Paper
- 2025 paper
- Subject
- Zoology
- Chapter
- Biotechnology: Principles and Processes
- Topic
- Cloning Vectors
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