What is the fate of a piece of DNA which is somehow transferred into an alien organism?

Options

A. This piece of DNA would not be able to multiply itself in the progeny cells of the organism if not intergrated into the genome of the oganism.
B. If the alien piece of DNA has become a part of the chromosome, it will replicate.
C. If the alien piece of DNA is linked with the origin of replication in chromosome, it will replicate.
D. All of these

Answer

To answer the question about the fate of a piece of DNA transferred into an alien organism, we can break it down into several steps:

### Step-by-Step Solution:

1. **Understanding DNA Transfer**: When a piece of DNA is transferred into an alien organism (which can be any organism that is not the original source of the DNA), it initially exists as an independent entity within the host's cellular environment.

**Hint**: Consider how foreign DNA interacts with the host cell's machinery.

2. **Integration into the Genome**: For the transferred DNA to replicate and be passed on to progeny cells, it must integrate into the host organism's genome. If it does not integrate, it will not replicate during cell division.

**Hint**: Think about the importance of the host's genetic material in replication.

3. **Replication of Integrated DNA**: If the alien DNA successfully integrates into the host genome, it will replicate along with the host's DNA during cell division. This means that the alien DNA can be inherited by the progeny cells.

**Hint**: Reflect on how DNA replication occurs during cell division.

4. **Linking with the Origin of Replication**: If the alien DNA is linked to the origin of replication within the host chromosome, it will ensure that the DNA is copied during the replication process. This is crucial for the successful propagation of the alien DNA.

**Hint**: Consider the role of the origin of replication in DNA synthesis.

5. **Conclusion**: Therefore, the fate of the transferred DNA depends on whether it integrates into the host genome and whether it is associated with the necessary replication machinery. If all conditions are met, the alien DNA will replicate and be inherited by the host's progeny.

**Hint**: Summarize the conditions required for successful integration and replication of alien DNA.

### Final Answer:
The fate of a piece of DNA transferred into an alien organism can be summarized as follows:
- If the DNA integrates into the host genome, it will replicate and be inherited by the progeny.
- If it is linked to the origin of replication, it will also replicate.
- Therefore, all the statements regarding the fate of the DNA are correct, leading to the conclusion that the answer is "all of these."