Question

7 how was mrna used in the creation of the covid - 19 vaccine? a genetic information was replicated to build proteins similar covid b antibiotics were created from the mrna strand c the mrna strand was transcribed to identify a protein structure d researchers developed a new strain of covid - 19

Explanation:

mRNA vaccines work by introducing genetic information (mRNA) into cells. This mRNA contains instructions for cells to produce a specific protein (in this case, a protein similar to one found on the surface of the SARS - CoV - 2 virus, which causes COVID - 19). When the cells produce this protein, the immune system recognizes it as foreign and mounts an immune response. This immune response includes the production of antibodies and the activation of immune cells that can recognize and remember the protein. If the person is later exposed to the actual virus, the immune system can quickly recognize and respond to it, preventing or reducing the severity of the disease.

• Option A: mRNA carries genetic information. In the case of COVID - 19 vaccines, the mRNA is designed to code for a protein (such as the spike protein of the SARS - CoV - 2 virus). When introduced into cells, the cells use the mRNA as a template to build the protein. The immune system then recognizes this protein as foreign and mounts an immune response. This option is correct as it describes the general process of how mRNA is used in the vaccine (genetic information is used to build a protein that elicits an immune response).
• Option B: Antibiotics are used to treat bacterial infections, not viral infections like COVID - 19. mRNA is not used to create antibiotics. This option is incorrect.
• Option C: While transcription is a part of the normal process of gene expression (DNA→mRNA), in the context of mRNA vaccines, the mRNA is already synthesized and introduced into cells. The key is that the mRNA is used as a template for protein synthesis (translation), not just transcription. This option is not the most accurate description of how mRNA is used in the vaccine.
• Option D: Researchers did not develop a new strain of COVID - 19 for the vaccine. The goal is to prevent infection with the existing virus. This option is incorrect.

Answer:

A. Genetic information was replicated to build proteins similar Covid