What is the primary role of mRNA in the process of protein synthesis?

What is the primary role of mRNA in the process of protein synthesis?

• A. To bring amino acids to the ribosome
• B. To provide structural support
• C. To store genes
• D. To carry instructions from DNA

Answer: (D)

The primary role of mRNA, or messenger RNA, in protein synthesis is to carry instructions from DNA to the ribosome, where proteins are synthesized. This process begins in the nucleus, where genes in the DNA are transcribed into mRNA. The mRNA serves as a template, specifically encoding the sequence of amino acids that will form a protein. Once the mRNA is synthesized, it is transported out of the nucleus and into the cytoplasm, where ribosomes read the mRNA sequence. Within the ribosome, the information encoded in the mRNA is translated into a specific sequence of amino acids, which are linked together to form a polypeptide chain. This chain will then undergo folding and modifications to become a functional protein. Therefore, mRNA is essential for conveying the genetic information necessary for protein synthesis from DNA to the ribosomes, making its role critical in the flow of genetic information in the cell.

The primary role of mRNA, or messenger RNA, in protein synthesis is to carry instructions from DNA to the ribosome, where proteins are synthesized. This process begins in the nucleus, where genes in the DNA are transcribed into mRNA. The mRNA serves as a template, specifically encoding the sequence of amino acids that will form a protein. Once the mRNA is synthesized, it is transported out of the nucleus and into the cytoplasm, where ribosomes read the mRNA sequence.

Within the ribosome, the information encoded in the mRNA is translated into a specific sequence of amino acids, which are linked together to form a polypeptide chain. This chain will then undergo folding and modifications to become a functional protein. Therefore, mRNA is essential for conveying the genetic information necessary for protein synthesis from DNA to the ribosomes, making its role critical in the flow of genetic information in the cell.