Which steps are involved in genetically modifying an organsim ?
A. Identificaiton of desriable DNA
B.Insertion of DNA into the host .
C. Mainteance of introduced DNA in the host .
D. Isolation of recombinant protein

Options

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

Answer

To answer the question regarding the steps involved in genetically modifying an organism, we can break down the process into the following steps:

1. **Identification of Desirable DNA**: The first step in genetically modifying an organism is to identify the specific gene or DNA sequence that encodes the desired trait. This could be a gene that confers resistance to pests, enhances nutritional value, or improves growth rates.

2. **Insertion of DNA into the Host**: Once the desirable DNA has been identified, the next step is to insert this DNA into the host organism's genome. This can be done using various techniques such as transformation, transfection, or using vectors like plasmids or viruses.

3. **Maintenance of Introduced DNA in the Host**: After the DNA has been successfully inserted, it is crucial to ensure that the introduced DNA is maintained within the host organism. This involves ensuring that the DNA is replicated and expressed properly during cell division and that it is not degraded by the host's cellular mechanisms.

4. **Isolation of Recombinant Protein**: Although this step is important in the overall process of utilizing genetically modified organisms, it is not a part of the genetic modification process itself. This step involves extracting and purifying the protein that is produced as a result of the expression of the inserted gene.

Based on these steps, the correct options that are involved in genetically modifying an organism are:
- A. Identification of desirable DNA
- B. Insertion of DNA into the host
- C. Maintenance of introduced DNA in the host

Thus, the correct answer is A, B, and C.