The if statement for Python will seem amazingly familiar. It is made up of three main components: the keyword itself, an expression that is tested for its truth value, and a code suite to execute if ...

A manuscript recently published in Nature Methods by the Trono and Aebischer labs introduces a new transcriptionally regulated, lentivirus-based transgene delivery system functional in cultured cells ...

Conditional expression of gene activity provides a means to examine gene function that is restricted in time or cell type and is particularly useful when complete elimination of gene activity leads to ...