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Real-Time PCR Question - (Nov/08/2006 )

hello-

what does it mean when you amplify two mRNAs and one amplification curve has a low ct but the other curve (with a higher cT) has a much higher end point fluorescence reading?

could amplicon size be a factor?

-BioDude1-

QUOTE (BioDude1 @ Nov 8 2006, 05:56 PM)
hello-

what does it mean when you amplify two mRNAs and one amplification curve has a low ct but the other curve (with a higher cT) has a much higher end point fluorescence reading?

could amplicon size be a factor?


Are you using SYBR green?

My guess is that you are having issues around non-specific products amplifying. SYBR green will detect these just like it detects "correct" product, and give you an erroneous idea of product.

You can run the end product on a gel to check, or use the dissociation step.

More details would be helpful.

-Patty4150-