1. The enzyme that accomplishes the unwinding of the original double stranded DNA molecule, once supercoiling has been eliminated, by breaking the hydrogen bonds that hold the two strands together is :   DNA Polymerase II   Topoisomerase   Helicase   Primase   Hint Half-n-half Clue   2. The enzyme that (during replication) proceeds along one of the strands of a DNA molecule adding deoxy-nucleotide-triphosphates to hydrogen bond with their appropriate complementary dNTP on the other single strand and to form a covalent phosphodiester bond with the previous nucleotide of the same strand is called :   Primase   DNA Polymerase III   DNA Polymerase I   DNA Polymerase II   Half-n-half Clue   3. The enzyme responsible for initiating the unwinding of double-stranded DNA (eliminating supercoiling) by nicking a single strand of the DNA molecule is :   Topoisomerase   Helicase   Ligase   Gyrase   Half-n-half Clue   4. Because DNA polymerase III can only act from 5' to 3', continuous strand growth can be achieved only along one of the template strands (Leading strand) and strand growth along the other strand must occur discontinuously resulting in the production of a series of short sections of new DNA called :   Replicon fragments   Okazaki fragments   Klenow fragments   None of the above   Half-n-half Clue   5. The enzyme X removes RNA primers attached by Primase and this gap is then filled in by DNA Polymerase I. The enzyme X is :   RNase H   DNA amylase   DNA ligase   Reverse Transcriptase   Half-n-half Clue   6. The enzyme that creates a short RNA oligonucleotide at initiation sites where replication is to be carried out is called :   Primase   DNA Ligase   DNA Gyrase   Exonuclease   Half-n-half Clue   7. The enzyme that stitches Okazaki fragments together (along the lagging strand) is called :   DNA Polymerase II   Topoisomerase   DNA Ligase   Holoenzyme   Half-n-half Clue   FREE PREVIEW: Last 10 Questions not a part of the free preview. Get Premium Membership to view all questions.