энгийн манганы хүдэр
манганы хүдэр баяжуулах үйл явцын дэлгэрэнгүй. The polymerase chain reaction (PCR) is a biochemical technology in molecular biology to amplify a single or a few copies of a piece of DNA across several orders of magnitude, generating thousands to millions of copies of a particular DNA sequence..лити хүдэр бутлуур лити хүдэр ...