primer DNA DNA Primers 48 article 44 genetics 36 nucleotide sequence 34 Base Sequence 28 metabolism 28 polymerase chain reaction 22 Animals 20 Polymerase Chain Reaction 20 Molecular Sequence Data 18 animal 18 molecular genetics 18 controlled study 16 RNA, Messenger 14 gene expression regulation 14 messenger RNA 14 physiology 14 growth, development and aging 12 nonhuman 12 reverse transcription polymerase chain reaction 12 DNA sequence 10 Phylogeny 10 Reverse Transcriptase Polymerase Chain Reaction 10 Sequence Analysis, DNA 10 chemistry 10 Analysis of Variance 8 Humans 8 Plants, Genetically Modified 8 analysis of variance 8