[Hook: Ja Rule] + (Ashanti) Girl your stare, those eyes I (love it when you look at me baby) Your lips, your smile I (love it when you kiss me baby) Your hips, those thighs I (love it when you call me baby) And I can't, deny I (love it when I'm witchu baby) [Ja Rule] I, got a fetish for fuckin you witcha skirt on.
The primers used must be specific to the targeted sequences in the DNA of a virus, and the PCR can be used for diagnostic analyses or DNA sequencing of the viral genome. The high sensitivity of PCR permits virus detection soon after infection and even before the onset of disease.
Working principle of PCR. As the name implies, it is a chain reaction, a small fragment of the DNA section of interest needs to be identified which serves as the template for producing the primers that initiate the reaction. One DNA molecule is used to produce two copies, then four, then eight and so forth.