Where is the information stored that determines the function of a protein?

• A. In the sequence of nucleotides in DNA
• B. In the structure of ribosomes
• C. In the lipid bilayer of the cell membrane
• D. In the sequence of amino acids in proteins

Answer: (A)

Verified step by step guidance

1. Understand that proteins are made up of chains of amino acids, and their function is determined by their specific sequence and structure.
2. Recognize that the sequence of amino acids in a protein is dictated by the sequence of nucleotides in DNA, which is transcribed into mRNA and then translated into a protein.
3. Recall that ribosomes are the cellular machinery that facilitate the translation of mRNA into a protein, but they do not store the information for protein function.
4. Acknowledge that the lipid bilayer of the cell membrane is involved in protecting and organizing cells, but it does not store genetic information or determine protein function.
5. Conclude that the information determining the function of a protein is stored in the sequence of nucleotides in DNA, which ultimately dictates the sequence of amino acids in the protein.