Question

During the process of protein synthesis, each tRNA carries one A)fatty acid B)amino acid.C)nucleotide.D)nucleic acid.

Answer 1

Answer: The correct answer is- B)amino acid.

tRNA (transfer RNA) plays an important role in the formation of proteins using mRNA transcript. It brings specific amino acid to the ribosome site where mRNA transcript is present.

tRNA has anticodon site (that is complementary to the specific three nucleotide sequence called codon, present in the mRNA) and an amino acid binding site where amino acid is attached.

Thus, by reading specific codons present in the mRNA ( messenger RNA), particular amino acids are assembled in a sequence ( through peptide bond) and this results in the synthesis of proteins ( translation).

Therefore, option A) is the right answer.

Answer 2

The process of protein synthesis starts with transcription. Transcription is the process in which the DNA segment is copied into the RNA. This RNA is known as the messenger RNA (mRNA).

The next step is the translation. During this process, the mRNA is decoded in the cell's ribosome. The tRNA brings the amino acids, which are coded by the mRNA. These amino acids are added together forming a polypeptide.

Hence, the answer is option (B) - amino acids.