The RNA world hypothesis is a theory which proposes that world filled with RNA based life predates current DNA based life. RNA, which can store information like DNA and catalyse reactions like proteins, may have supported cellular or pre-cellular life. The RNA world hypothesis is supported by RNA’s ability to store, transmit andduplicate genetic information, as DNA does. RNA can also act as a ribozyme and enzyme made of ribonucleic acid. Because it can reproduce on its own, performing the tasks of both DNA and proteins enzymes, RNA is believed to have once been capable of independent life.
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