RNA ties itself up in knots, then lands itself in a video that spells itself.

Striking new videos show how RNA – the genetic molecule that tells cells how to make proteins – gets tangled up in crazy lumps, only to disintegrate themselves in the last second, and in a way surprise scientists.

High-resolution videos depict a bouncing conga line of nucleotides, the building blocks of Royal army; Single strands of RNA grow longer, these nucleotides dance and fold into different three-dimensional shapes, first in a deformation and then in a second. Once fully assembled, RNA assumes its final shape, which describes how it can interact with other molecules and proteins in the cell.

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