Which of these is a trna? the process of translation. each letter marks a definite structure. letter a marks a thread, to which the ribosome is attached. this thread is the template of translation. letter b marks a structure bonded to gly and located inside structure c. letter c marks a structure, in which translation happens. letter d marks a thread, the product of translation. letter e marks constituent elements of the forming thread. which of these is a trna? the process of translation. each letter marks a definite structure. letter a marks a thread, to which the ribosome is attached. this thread is the template of translation. letter b marks a structure bonded to gly and located inside structure c. letter c marks a structure, in which translation happens. letter d marks a thread, the product of translation. letter e marks constituent elements of the forming thread. a b c d e