Question:
Given below are two statements:
Statement (I): In rDNA technology, the transformation process generates a mixed population of transformed and non-transformed host cells.
Statement (II): In the screening process, both transformed and non-transformed host cells divide and redivide along with the replication of recombinant DNA.
In light of the above statements, choose the most appropriate answer from the options given below.
Given below are two statements:
Statement (I): In rDNA technology, the transformation process generates a mixed population of transformed and non-transformed host cells.
Statement (II): In the screening process, both transformed and non-transformed host cells divide and redivide along with the replication of recombinant DNA.
In light of the above statements, choose the most appropriate answer from the options given below.
Statement (I): In rDNA technology, the transformation process generates a mixed population of transformed and non-transformed host cells.
Statement (II): In the screening process, both transformed and non-transformed host cells divide and redivide along with the replication of recombinant DNA.
In light of the above statements, choose the most appropriate answer from the options given below.
Show Hint
Only some cells take up the rDNA, and screening picks out only the transformed ones.
Updated On: Nov 12, 2026
- Both Statement (I) and Statement (II) are correct.
- Both Statement (I) and Statement (II) are incorrect.
- Statement (I) is correct but Statement (II) is incorrect.
- Statement (I) is incorrect but Statement (II) is correct.
Show Solution
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The Correct Option is C
Solution and Explanation
Step 1: Understanding the Concept
Transformation is the uptake of recombinant DNA by host cells. It is not fully efficient.
Step 2: Statement (I)
Because only some host cells take up the rDNA, a mixed population of transformed and non-transformed cells is formed. Statement (I) is correct.
Step 3: Statement (II)
In screening, a selectable marker such as antibiotic resistance is used so that only transformed cells survive and multiply. Both types of cells do not keep dividing, so Statement (II) is incorrect.
Step 4: Conclusion
Statement (I) is correct but Statement (II) is incorrect.
Final Answer:
Statement (I) is correct and Statement (II) is incorrect. \[ \boxed{\text{(C) }\text{Statement (I) is correct but Statement (II) is incorrect.}} \]
Transformation is the uptake of recombinant DNA by host cells. It is not fully efficient.
Step 2: Statement (I)
Because only some host cells take up the rDNA, a mixed population of transformed and non-transformed cells is formed. Statement (I) is correct.
Step 3: Statement (II)
In screening, a selectable marker such as antibiotic resistance is used so that only transformed cells survive and multiply. Both types of cells do not keep dividing, so Statement (II) is incorrect.
Step 4: Conclusion
Statement (I) is correct but Statement (II) is incorrect.
Final Answer:
Statement (I) is correct and Statement (II) is incorrect. \[ \boxed{\text{(C) }\text{Statement (I) is correct but Statement (II) is incorrect.}} \]
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