1 Wash off with lukewarm water once it dries down. 2  If this sticks to your skin, take a clean cloth and wet it with warm water. 3  Rub your face gently with this cloth to remove the oats scrub from your face. 4  Repeat 2 times a week to get rid of black spots on your face.
Please help improve the article with a good introductory style. (October 2009) (Learn how and when to remove this template message) A molecular probe is a group of atoms or molecules used in molecular biology or chemistry to study the properties of other molecules or structures.
What is PCR (polymerase chain reaction)? PCR (polymerase chain reaction) is a method to analyze a short sequence of DNA (or RNA) even in samples containing only minute quantities of DNA or RNA. PCR is used to reproduce (amplify) selected sections of DNA or RNA. Previously, amplification of DNA involved cloning the segments of interest into vectors for expression in bacteria, and took weeks.