You could do an Agarose Gel Electrophoresis. Run your PCR to a DNA ladder and confirm that the size of your amplified gene corresponds to the appropriate size on your DNA ladder (for example, if your gene is approximately 3000 base pairs in length, it should correspond to the 3000 bp band of the DNA ladder).
PCR stands for Polymerase Chain Reaction.
PCR
PCR can repeatedly duplicate a DNA (or RNA) fragment, so it's a chain reaction. After each cycle, PCR can repeat and repeat again to produce many copies of the same DNA segment.
If the PCR that was run was an RT-PCR then the band with 300 extra bp could be caused by the presence of contaminating gDNA in the reaction. Many primers for RT-PCR are designed to sit in different exons. If the intron in between was about 300bp in length and gDNA was added to the reaction as well as cDNA then two bands would result, the shorter/lighter one from the cDNA and the longer/heavier band from the gDNA.
That would probably be polymerase chain reaction or PCR for short.
PCR stands for Polymerase Chain Reaction.
It Inhibits the PCR reaction by chelating the magnesium ions.
PCR
types of pcr: AFLP -PCR. Allele-specific PCR. Alu-PCR. Assembly -PCR. Assemetric -PCR. Colony -PCR. Helicase dependent amplification. Hot start pCR. Inverse -PCR. Insitu -pCR. ISSR-PCR. RT-PCR(REVERSE TARNSCRIPTASE). REAL TIME -PCR
Polymerase Chain Reaction
it enhance the reaction
A polymerase chain reaction
PCR can repeatedly duplicate a DNA (or RNA) fragment, so it's a chain reaction. After each cycle, PCR can repeat and repeat again to produce many copies of the same DNA segment.
Heating
In qualitative PCR specific DNA fragment is detected while in quantitative PCR our target DNA sequence not only is detected but its amount is determined (after reaction we can calculate the amount of DNA we had in our sample)
Primerdimer occur, when the Primer are -or parts- are complementary (3' of the FOR- and 3' of the REV-Primer). While PCR both oligos hybridizate and are elongated. The Product contains both primer sequences. Primerdimers reduce the avaiable ammount of primers for the pcr-reaction. Therefore the pcr effectivity is reduced because of this non-specific reaction.
If the PCR that was run was an RT-PCR then the band with 300 extra bp could be caused by the presence of contaminating gDNA in the reaction. Many primers for RT-PCR are designed to sit in different exons. If the intron in between was about 300bp in length and gDNA was added to the reaction as well as cDNA then two bands would result, the shorter/lighter one from the cDNA and the longer/heavier band from the gDNA.