The primer tail can be amplified through rolling circle amplification. The resultant electrical signal can then be electronically amplified. The modulated carrier is amplified and applied to an antenna. One is by the frequency of the electronic signal being amplified. The signal may be amplified before detection. The binding sequences are amplified, sequenced, and analyzed. The mRNA may then be amplified and sequenced. This happens because noise can become amplified by positive feedback. Before sequencing, the DNA is amplified by emulsion PCR. This is used to reduce audio feedback triggered by other highly amplified sounds onstage. So the signal is amplified along its direction of travel only. In this way, extremely small DC signals can be amplified. The DNA melting temperature is specific to the amplified fragment. This response is amplified by concomitant angiogenesis. Voices must be strong to be heard over amplified instruments.