What is the contribution of Severo Ochoa?

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(B) Severo Ochoa was a Spanish-American biochemist who made significant contributions to the understanding of genetic code.He discovered the enzyme $P

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Synthesis of $RNA$ with defined sequences

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(B) Severo Ochoa was a Spanish-American biochemist who made significant contributions to the understanding of genetic code.He discovered the enzyme $Polynucleotide$ $phosphorylase$,which is also known as the $Ochoa$ $enzyme$.This enzyme helps in the polymerization of $RNA$ in a template-independent manner.It allowed scientists to synthesize $RNA$ molecules with defined sequences of bases in a test tube,which was a crucial step in deciphering the genetic code.

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