[biorxiv.org] Very short RNAs play critical roles in modern biology, and are thought to have been crucial for genome replication during the origin of life.
![Graphical abstract -- [biorxiv.org]](https://i0.wp.com/astrobiology.com/wp-content/uploads/2026/09/tinyRNA-seq.png?resize=1200%2C717&ssl=1)
[biorxiv.org] Very short RNAs play critical roles in modern biology, and are thought to have been crucial for genome replication during the origin of life.