Question

an rna molecule that can catalyze chemical reactions is called a______. view available hint(s) tetrahymena ribozyme stem - loop protein

Explanation:

Ribozymes are RNA - molecules with catalytic activity. Tetrahymena is a protozoan, a stem - loop is a secondary structure of RNA, and proteins are different macromolecules from RNA and usually act as enzymes but not RNA molecules with catalytic function.

Answer:

B. ribozyme