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DNA is a polar molecule because it has a negatively (-) charged phosphate group attached to the 5' end of the molecule and a negatively charge hydroxl group (OH) attached to t â¦ he 3' prime end of the molecule. Thus, it is a POLAR molecule which allows it to interact in an aqueous environment.NA is a polar molecule because it has a negatively (-) charged phosphate group attached to the 5' end of the molecule and a negatively charge hydroxl group (OH) attached to t â¦ he 3' prime end of the molecule.
DNA helicase an enzyme that unwinds the DNA double helix during DNA replication 7. DNA polymerase an enzyme that catalyzes the formation of the DNA molecule 8. double helix Spiral-staircase structure characteristic of the DNA molecule 9. guanine Nitrogen base found in DNA and RNA: pairs with cystosine.10.ydrogen bonds how bases in DNA are held together 11. nitrogen base a functional group consisting of a phosphorus atom covalently bonded to four oxygen atoms 12. nucleotide monomer of nucleic acids made up of a 5-carbon sugar, a phosphate group, and a nitrogenous base 13.