Why the variable loop is named so?

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Molecular Biology Practice Test: DNA, RNA and Protein — practice the complete quiz, review flashcards, or try a random question.

DNA, RNA and Protein topics include: DNA history as genetic material, nucleic acids chemical structures, double stranded dna forms, central dogma outlines, ribosomes read the genetic code and rna classes having different  DNA, RNA, and proteins are all essential for life.  DNA and RNA are nucleic acids that carry genetic information. DNA's double helix structure allows this information to be copied and passed on to the next generation.  DNA's gene sequence instructs cells to manufacture a particular protein. RNA is an intermediate language that translates a gene's message into a protein's... Show more

Why the variable loop is named so?