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.
c) 5.500 is the same as 5.5 and that is much more than 0. d) 5.050 here the decimal is 0.05 which is more than 0.005. simply put a) is the smallest number..i.e closest to 0.