Cesium (Cs) Cesium (Cs), also spelled caesium, chemical element of Group 1 (also called Group Ia) of the periodic table, the alkali metal group, and the first element to be discovered spectroscopically (1860), by German scientists Robert Bunsen and Gustav Kirchhoff, who named it for the unique blue lines of its spectrum (Latin caesius, âsky-blueâ).
The final step of the elongation cycle is translocation, which brings the ribosome into the âposttranslocationalâ (POST) state, with an empty A site, peptidyl-tRNA in the P site, and deacylated tRNA in the E site. Translocation is catalyzed by the binding of EF-G and subsequent GTP hydrolysis. The movement of the tRNA molecules is concomitant with the movement of the bound mRNA chain by the length of three bases, allowing the next codon of mRNA in the ribosomal A site to be presented for decoding.
Echolocation : Communication of Marine Mammals, Bats, and Humans Equivalent to sonar or radar, echolocation is the production of sound used for communication. Echolocation is the use of ultra-high frequency sounds for navigation and locating prey.