he evolution of eukaryotic cells most likely occurred in many steps. Outline the steps that may have occurred beginning with the formation of biological molecules and ending in compler ructures observed in eukaryotic cells today. rag the terms on the left to the appropriate blanks on the right to complete the sentences. Answers should include phases or steps such as (1) abiotic synthesis of molecules under hot, reducing conditions; (2) polymerization of molecules into nucleic acids and (students also include that may have been the first informational molecule and biological catalyst); (3) encapsulation of polymers in a simple membrane; (4) endosymbiosis of smaller cells (bacteria) inside a larger cell to form membrane- bound organelles such as mitochondria and.