Skip to main content
Premium Trial:

Request an Annual Quote

The Next Step is to Test the Theory, But How?

On his Gene Expression blog, Matt McIntosh discusses the intertwined roles of retrotransposons, non-coding DNA, and adaptive evolution. Eukaryotic genomes have transposons that duplicate and move around and sometimes take bits of genes with them, for good, bad, or neutral affect on the organism. McIntosh then theorizes that adaptive evolution accompanied by duplication events should correlate with more leftovers from transposition events. But he's not quite sure how to test that idea.

The Scan

Tens of Millions Saved

The Associated Press writes that vaccines against COVID-19 saved an estimated 20 million lives in their first year.

Supersized Bacterium

NPR reports that researchers have found and characterized a bacterium that is visible to the naked eye.

Also Subvariants

Moderna says its bivalent SARS-CoV-2 vaccine leads to a strong immune response against Omicron subvariants, the Wall Street Journal reports.

Science Papers Present Gene-Edited Mouse Models of Liver Cancer, Hürthle Cell Carcinoma Analysis

In Science this week: a collection of mouse models of primary liver cancer, and more.