Answer:
The Mark B is the tRNA in the illustration
Explanation:
The process of translation requires four significant components within the cell
1. The mRNA, which is a product of transcription from the cells RNA or DNA, depending on the genetic part of the cell, as some cells have RNA while others have DNA. It bears the exons for the process of translation. Thus it is usually attached to the ribosome during the process of translation. This is mark A.
2. The tRNA, which generally forms a loop with one end used for the attachment of the right amino acid coded on the mRNA triplet codons. The illustration given in the question shows that the structure mark B is attached to Glycine. This showed that the structure is the tRNA.
3. The ribosome is the main structure where protein is being synthesized; it housed the mRNA and permit the input of the right amino acid for the formation of peptide bonds.
4. Amino acids are also essential for the production of protein during translation.
