The Polymerase Chain reaction (PCR) is a technique widely used in molecular biology to identify specific DNA fragments generally in a size range of 100 to 1000 base pairs (bp). PCR sensitivity refers to the potential of the PCR technique to specifically amplify the desired sequence in the sample. PCR is a highly sensitive (and also specific) method with values around 100% if the experimental conditions are proper. However, to reach these values, it is imperative to work in optimal conditions by eliminating contaminant factors in the sample which may alter PCR amplification.
Ants rummage to discover nourishment and take it back to the state. On the off chance that they go over nourishment things that are excessively huge or substantial for a solitary individual to convey, a few species can frame groups to agreeably convey these things to the home. This aggregate route process relies on the navigational capacities of the individual ants.
The direction capacity required of selected people is to follow the aroma of the path, which is kept crisp by the continuous checking conduct of the foragers, as modest drops of the path pheromone are laid on the substrate (e.g., ground, tree trunks).
That is the manner by which the ants manage two contending trails of various lengths; the more drawn out course will turn out to be less and less engaging as an ever increasing number of individual specialists are pulled in by the more grounded smell of the shorter way.
Hence, the right answer is option D "Hypothesize that the ants are following a scent trall that the first ant left".