Triggers of nonallergic rhinitis symptoms vary and can include certain odors or irritants in the air, changes in the weather, some medications, certain foods, and chronic health conditions. A diagnosis of nonallergic rhinitis is made after an allergic cause is ruled out.
DNA extraction. For the various methods, see Nucleic acid methods. DNA isolation is a process of purification of DNA from sample using a combination of physical and chemical methods. The first isolation of DNA was done in 1869 by Friedrich Miescher. Currently it is a routine procedure in molecular biology or forensic analyses.
DNA ligase molecules. 5. The process in which an RNA polymerase molecule assembles an mRNA molecule whose nucleotide sequence is complementary to the DNA sequence is called a. gene amplification. b. translation. c. transcription.d. polypeptide sequencing.. The process in which an RNA polymerase molecule assembles an mRNA molecule whose nucleotide sequence is complementary to the DNA sequence is called. a. gene amplification. b. translation. c. transcription. d. polypeptide sequencing. e. complementary base pairing. 6.