The tertiary structure of the protein molecule is represented by - Bbl6epure oAMH OTBer: a. beta helix b. beta - layer c. globular structure d. several a-helices forming a superhelix

The correct answer is d. several a-helices forming a superhelix.The tertiary structure of a protein molecule refers to the overall three-dimensional shape or conformation of the protein. It is the result of the folding and arrangement of the secondary structures, such as alpha-helices and beta-sheets, into a compact and stable structure.In the case of the protein molecule in question, the tertiary structure is represented by several alpha-helices forming a superhelix. This means that multiple alpha-helices are intertwined or stacked together to form a helical structure. This type of tertiary structure is commonly found in many proteins, including enzymes, transport proteins, and structural proteins.The other options provided are not accurate representations of the tertiary structure of a protein molecule:a. helix: This refers to a specific type of secondary structure, not the overall tertiary structure.b. -layer: This is another type of secondary structure, not the tertiary structure.c. globular structure: While many proteins have a globular shape, this term does not specifically describe the tertiary structure.Therefore, the correct answer is d. several alpha-helices forming a superhelix.