Double-stranded RNA (dsRNA)

Double-stranded RNA (dsRNA) is a molecule made up of two complementary strands of RNA, resembling a twisted ladder, similar to double-stranded DNA but usually shorter. It naturally occurs in some viruses and plays a role in antiviral defense mechanisms in cells. When detected, dsRNA triggers immune responses that help identify and combat viral infections. In scientific research, dsRNA is also used to selectively turn off specific genes in cells, a technique called RNA interference. Overall, dsRNA is an important molecular structure involved in viral defense and gene regulation processes.