11. The subunit is circularized by the formation of a peptide bond between the two ends of the polypeptide. 12. The spacecraft then fires its engine once it reaches apogee halfway around the world to circularize the orbit. 13. After another maneuver on Tuesday, its orbit will be circularized at around 385 kilometers ( 240 statute miles ). 14. Thirty-eight minutes later, the rocket's second-stage engine fired again to circularize the orbit. 15. This technique was used, for example, on the launch and transfer circularize the orbit to a geostationary orbit. 16. The circularized DNA containing one copy of the P22 nucleotide sequence is the substrate for gene expression and DNA replication. 17. In 1989, " T . celer " was the first archaeon discovered to house a circularized genome. 18. Since the Long March third stage cannot restart, it cannot circularize a GSO orbit from a geostationary transfer orbit. 19. The discovery was made as Global Surveyor began its maneuvers to lower and circularize its orbit to prepare for a detailed mapping survey. 20. The circularized orbit allowed a much higher resolution of gravimetric data to be acquired when cycle 5 began on August 3, 1993.