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 planet that can be closest to earth when we're both in the same part of our orbits is Venus. The minimum distance between us and Venus is about 25.5 million miles, or about 28% of the distance from earth to the sun.The next nearest possible is Mars, whose distance from Earth can be as small as 48.5 million miles.enus is closer to the sun. The order of the planets is (from the Sun); Mercury, Venus, Earth, Mars, (asteroid belt), Jupiter, Saturn, Uranus and Neptune. The new Solar System â¦ Model classifies Pluto as the second largest minor planet in the solar system with Eris as the largest. 9 people found this useful.