Which of the Following Could Be a Source for a SiRNA

Question

Which of the following could be a source for a siRNA or miRNA molecule?
A) Mir gene
B) Transposon
C) RNA virus
D) Transgene
E) All of these are correct.

Accepted Answer

All of these options could potentially be sources for siRNA or miRNA. 
- The Mir gene produces precursor miRNA molecules which are processed into mature miRNA. 
- Transposons have been found to produce siRNA which can silence transposon activity. 
- RNA viruses can produce both siRNA and miRNA as part of their replication strategy. 
- Transgenes can be designed to produce siRNA or miRNA molecules that target specific genes.