Synthesis of mRNA is:

in the 5' to 3' direction with new nucleotides being added to the 5' end of the mRNA molecule.
in the 3' to 5' direction with new nucleotides being added to the 5' end of the mRNA molecule.
in the 5' to 3' direction with new nucleotides being added to the 3' end of the mRNA molecule.
in the 3' to 5' direction with new nucleotides being added to the 3' end of the mRNA molecule.
able to proceed either from the 5' to 3' or 3' to 5' direction.


in the 5' to 3' direction with new nucleotides being added to the 3' end of the mRNA molecule.

Anatomy & Physiology

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__________________ may be used to break up uroliths

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