Lack of any tRNA which can bind to the stop codon 12. Density gradient centrifugation 14. It is the usual configuration of DNA in a living cell 15. A strain of E. coli has a severely mutated Shine-Dalgarno sequence upstream of the start codon for the rec A gene. For each of the statements below, if you think it is correct write TRUE on line.
Most transcribed genes are present in a eukaryote genome as unique sequences .
A TRUE B 2. Always monocistronic 3. The octamer of histones within the nucleosome core particle contains two molecules each of H1, H2A, H2B and H3 . Hershey and Chase's experiment which conclusively demonstrated DNA to be the genetic material used radiolabelled Streptococcus bacteria. Eukaryote mRNA has a poly-adenine tail added to the 3'end before translation.