As this year’s invertebrate of the year competition launches, we join scientists studying last year’s winner ...

In a way, sequencing DNA is very simple: There's a molecule, you look at it, and you write down what you find. You'd think it would be easy—and, for any one letter in the sequence, it is. The problem ...

Add Popular Science (opens in a new tab) More information Adding us as a Preferred Source in Google by using this link indicates that you would like to see more of our content in Google News results.

In 1995, with the Human Genome Project underway, sequencing was all the rage. Scientists working on the project cloned short fragments of the whole genome and used Sanger sequencing to determine the ...

Scheme showing the structure of cytosine, 5-methylcytosine, and 5-hydroxymethylcytosine. Adding a methyl group to the DNA base cytosine represses gene expression in mammalian cells. To remove the ...