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Origins of Life: Protobiont Formation

APBIO-LZD2U4

The replication of DNA molecules requires several different enzymes, all of which require specific environmental conditions in order to maintain a functional shape. Hypotheses about the origin of life on Earth pose that before self-replicating genetic information evolved, a protobiont emerged similar to a cell membrane that separated genetic material from external environments.

The formation of which of the following organic molecules would have facilitated the formation of structures capable of maintaining isolated, internal microenvironments different from external environmental conditions?

A

Proteins.

B

Lipids.

C

RNA molecules.

D

Ribozymes.