Respuesta :
Ribozymes are molecules made of Ribonucleic Acid (RNA) that can speed up chemical reactions. In ribozymes, RNA molecules exhibit catalytic activity (i.e., they act as enzymes).
- It is hypothesized that RNA may have evolved before DNA because RNA molecules can catalyze a variety of biologically important reactions.
- The RNA world hypothesis indicates that life originated through RNA molecules that were capable of acting as genomes and RNA catalysts.
- This hypothesis proposes that self-replicating RNA sequences appeared before the emergence of DNA and proteins.
- According to the RNA world hypothesis, the combined features of RNA molecules, which can act both as genetic material (genomes) and ribozymes (i.e., catalysts), would have enabled the evolution of the early life forms on Earth.
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Answer:
are found in more modern cells than are DNA molecules
Explanation: