Which of the following describes the synthesis of nucleic acids? Select all that apply. Select all that apply. Nucleic acids are polymerized by the formation of peptide bonds between nucleotides. Strands in a double helix are synthesized in a parallel direction such that one end of the molecule has two 3′ ends and the other end has two 5′ ends. Complementary pairing between bases is required for copying nucleic acids. Deoxyribonucleotides are added to the 3′ end of a DNA strand.

Complementary pairing between bases is required for copying nucleic acids. Deoxyribonucleotides are added to the 3′ end of a DNA strand.

Explanation:

Nucleic acids are one of the four biomolecules that occurs in living systems. They are biopolymers formed from nucleotide subunits. Hence, a nucleic acid is a long chain of nucleotides. DNA and RNA are the two nucleic acids in nature. According to the complementary base pairing rule/ Chargaff's rule, the base portions in the nucleotides of a nucleic acid are held together by hydrogen bonds in a complementary fashion i.e. A-T, G-C.

Since DNA polymerase, which synthesizes new DNA strand during DNA replication, moves in the 5'-3' end direction, nucleotides are added to the 3' end (deoxyribose end) of the DNA strand.

Note that, DNA strands are synthesized in an antiparallel manner in which one end of the strand has a 5' and 3'.

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