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30.7 x 40.9 cm ⏐ 12.1 x 16.1 in (300dpi)
LAGUNA DESIGN / SCIENCE PHOTO LIBRARY LAGUNA DESIGN / SCIENCE PHOTO LIBRARY
RNA interference viral suppressor and RNA. Molecular model of the p19 protein (yellow) from a Tombusvirus, suppressing a double-stranded, small interfering RNA (siRNA) molecule (red and blue). RNA interference, or RNA silencing, has developed in plants as a defence against viruses. However, some viruses have developed proteins such as p19, that inhibit the process and allow them to infect the host plant's cells.
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