0 votes 0 votes Phylum proteobacteria is subdivided into $\alpha-, \beta-, \gamma-, \delta-$ and $\epsilon-$ proteobacteria based on $G+C$ content $23S\; rRNA$ sequences $tRNA$ sequences $16S\; rRNA$ sequences Recombinant DNA technology and Other Tools in Biotechnology gate2013 dna-rna + – Milicevic3306 asked Mar 25, 2018 • edited Nov 4, 2020 by soujanyareddy13 Milicevic3306 7.9k points answer comment Share Follow See all 0 reply Please log in or register to add a comment.