Polymerase chain reaction (PCR) is a laboratory technique used to amplify DNA sequences. The method involves using short DNA sequences called primers to select the portion of the genome to be amplified.olymerase chain reaction (PCR) is a laboratory technique used to amplify DNA sequences. The method involves using short DNA sequences called primers to select the portion of the genome to be amplified.
The smallest possible size for anything in the universe is the Planck Length, which is 1.6 x10-35 m across.
The Kaaba is about 12mx12m so if you happen to be on the exact opposite side of the world from the Kaaba, you pick what you believe to be the shortest distance. If on the ISS, then obviously any direction towards Earth. The heavenly kaaba is inaccessible to physical beings therefore you canât reach it.