Hi Israa,

There are several criteria which should be considered in the qPCR assay. In simple words, qPCR with cDNA is more sensitive and preferred over single step RNA.

qPCR with cDNA offers us the opportunity to control the assay and multiplexing. cDNA can be stored for long time, thus if there is no time restrains, this method must be used.

qPCR with RNA is fast method of analysis where the initial material is not the bottleneck. Nevertheless, the possibility of the degradation of RNA is the major factor in producing errors in results.

SInce, qPCR efficiency depends more on the expertise in lab and experience of user rather than the method itself, the beginner should always go for the qPCR from cDNA.

Hi

I think qPCR with cDNA is more sensitive method and preferred over single step RNA .

regards

One step is much easier to perform but when you are obligated to make troubleshooting ..two step is much preferred. So, if the procedure you are goimg to do is consensus then go on for the one step ..if there is any doubts go for the two step.

Thanks Abhijeet , Reham and Furqan

Hi Isra'a...

Basically, in the molecular field, the greater number of steps, the greater probability of errors, especially with the poor experiences. So one-step is my choice.

Kind Regards.