Genetics

In cancer, an embryonic gene-silencing mechanism gone awry

There are some genes that are only activated in the very first days of an embryo's existence. Once they have accomplished their task, they are shut down forever, unlike most of our genes, which remain active throughout our ...

Medical research

'Junk DNA' can sense viral infection

Once considered unimportant "junk DNA," scientists have learned that non-coding RNA (ncRNA) — RNA molecules that do not translate into proteins — play a crucial role in cellular function. Mutations in ncRNA are ...

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