In most higher organisms, including humans, every cell carries two versions of each gene, which are referred to as alleles. Each parent passes on one allele to each offspring. As they are linked ...

Virus variation has been the bane of Covid-19 control. No sooner has one wave of infection passed than a second arrives, evading prior immunity and even vaccines. Monoclonal antibody drugs effective ...

Thinking of gene loss as an evolution force is a counterintuitive idea, for it is easier to think that only when we gain something -genes in this case- can we evolve. However the new work by these ...

One of the longest-running questions about this pandemic is a simple one: where did it come from? How did a virus that had seemingly never infected a human before make a sudden appearance in our ...