Scientists have uncovered mechanisms underlying the activation of the MRN complex -- the cell's DNA scissors. Using purified yeast proteins, they demonstrated that phosphorylation of Ctp1, a homolog ...
Just like the mechanical components in cars or computers, the molecules inside a cell can sometimes malfunction. When this happens during DNA replication, the result is an unpredictable change in the ...
Over a decade, scientists compared the genomes of 240 mammals to see how humans are the same — and different. By Carl Zimmer It has been 20 years since scientists put together the first rough draft of ...