Which of the following correctly describes nucleic acid synthesis? which of the following correctly describes nucleic acid synthesis?
a. complementary pairing between sugars is required for copying nucleic acids.
b. polymerization of nucleic acids occurs by the formation of phosphodiester bonds.
c. strands in a double helix are synthesized in a parallel orientation.
d. ribonucleotides are added to the 3' end of a dna strand. item 7

B

Explanation:

A nucleic acid monomer is made up of a 5’ carbon cyclic sugar. A nitrogenous base is attached to its 2’ carbon  and a phosphate molecule at its 5’ carbon. When forming a chain with its adjacent monomer there occurs a condensation reaction between the -OH of the 1’C and one -O of the phosphate molecule of the next monomer - forming a phosphodiester bond.  This continued, forms a polymer of nucleic acids called DNA.

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