Transfer RNA (tRNA) of an individual refers to the particular tRNA sequence present in that person's cells. It serves as an intermediary molecule during protein synthesis, carrying amino acids to the ribosomes. Synonyms that can be used to refer to "his transfer RNA" include "his specific tRNA", as it denotes the unique tRNA sequence present in his cells. Another alternative could be "his individual tRNA", emphasizing that this molecule is distinct and specific to him. Additionally, "his personal tRNA" can be utilized, underscoring the personalized nature of this tRNA in an individual's cellular processes. Overall, these synonyms highlight the unique and individualistic character of "his transfer RNA."