Question

Arrange the basic steps to develop G. M. O. (Genetically modified organisms) in sequence:
A. Transfer of DNA with desired genes to its progeny
B. Identification of DNA with desired genes
C. Introduction of the DNA into the host.
D. Maintenance of introduced DNA in the host.
Choose the correct answer from the options given below :

• A. A, B, C, D
• B. B, C, A, D
• C. B, A, D, C
• D. B, C, D, A

Hint:

Think of the process logically: {Find} the gene \(\rightarrow\) {Insert} the gene \(\rightarrow\) {Stabilize} the gene in the parent \(\rightarrow\) {Inherit} the gene in the offspring.

Answer 1

The Correct Option is D

Step 1: Concept Overview:
This question requires arranging the steps for creating a genetically modified organism in the correct logical order.
Step 2: Step-by-Step Breakdown:
Here's the logical sequence of steps:
B. Identifying Desired DNA: The initial step involves pinpointing and isolating the specific gene that provides the desired characteristic.
C. Introducing DNA into Host: Once identified and isolated, the gene must be inserted into the host organism's cells. This is the transformation process.
D. Maintaining DNA in Host: Post-transformation, successful integration and stability of the new DNA are crucial. This involves selecting transformed cells and ensuring the DNA's stable presence, either through integration or episomal replication, while growing and regenerating the host.
A. Transferring DNA to Progeny: The ultimate goal is a stable lineage with heritable traits. The introduced DNA must be transmitted to subsequent generations through normal reproduction.
Therefore, the correct order is B \(\rightarrow\) C \(\rightarrow\) D \(\rightarrow\) A.
Step 3: Conclusion:
The correct sequence is option B, C, D, A.