Pcr Cycle Graph. The pcr test uses amplification cycles to find viral rna. The sample is repeatedly chemically amplified to increase the rna copies until they can be detected.
Show the bands you expect to see on the empty gel image. Imagine that a pcr was done on these same four samples and that at cycle 25 you stopped the pcr and ran a gel of the four samples. As with the initial template dna denaturation step the time and temperature should be optimized according to the nature of the template dna dna polymerase and buffer components.
In your look at the graph below showing qpcr results.
We will discuss the most common template independent factors that can influence c t and. If the virus isn t detected within 40 amplification cycles the test result is negative. Imagine that a pcr was done on these same four samples and that at cycle 25 you stopped the pcr and ran a gel of the four samples. Defend your answer with evidence from the graph.
