All RNA and DNA polymerases elongate the new nucleic acid strand by catalyzing the formation of a 3', 5' phosphodiester bond between the incoming nucleotide and the free 3'-hydroxyl group of the growing nucleic acid strand. All species of RNA transcribed from DNA are subsequently translated into protein. Several ribosomes simultaneously translate a messenger RNA molecule. In nascent RNA, a hairpin structure followed by a sequence U residues causes termination of transcription. Aminoacyl-tRNA synthetases are highly selective in their recognition of both the amino acid to be activated and the prospective tRNA acceptor.
Protein synthesis is terminated by release factors that read stop codons.
Base pairing in dsDNA refers to which of the following stabilizing forces. A. hydrogen bonds. C. hydrophobic interactions. D. 3',5'-phosphodiester bonds. The cells were then allowed to grow for several generations and samples were harvested at intervals.