I am studying gene expression profiling considering a dataset available on NCBI website. I do not understand the following: why are there some genes that have different profile and different ID numbers but they refer to the same indentical gene ?
The dataset that I am analysing is here .
For instance, we have that ID-8938, ID-1870, ID-7323 and ID-15 refer to the same gene called RadA but the gene expression profiling is different for each ID. So I ask which is the difference between these ID if they represent the same gene ? Moreover, how can I understand which is the one that has to be chosen for the analysis ?