I recently switched to using python 2.5 from 2.4, one of the new language level features in 2.5 is conditional expressions. Which I thought was odd because I was already writing conditional expression ...

Conditional gene targeting based on excision or inversion of loxP-flanked DNA segments by Cre recombinase is a powerful technology for the analysis of gene function, but unexpected expression patterns ...

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 ...