1. The enzyme that stitches Okazaki fragments together (along the lagging strand) is called :   Holoenzyme   DNA Polymerase II   Topoisomerase   DNA Ligase   Hint Half-n-half Clue   2. An enzyme (used by all retroviruses) that transcribes genetic information of the virus from RNA into DNA, is :   Reverse transcriptase   RNA polymerase   Restriction nuclease   Methylase   Half-n-half Clue   3. An enzyme that recognizes and cuts DNA only at a particular sequence of nucleotides is often called :   Restriction endonuclease   RNA polymerase   Photolyase   DNA glycosylase   Half-n-half Clue   4. The enzyme responsible for initiating the unwinding of double-stranded DNA (eliminating supercoiling) by nicking a single strand of the DNA molecule is :   Topoisomerase   Ligase   Helicase   Gyrase   Half-n-half Clue   5. 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   6. What does transformation involve in Bacteria ?   the creation of a strand of DNA from RNA   assimilation of external DNA into a cell   the creation of a strand of RNA from DNA   the infection of cells by a phage DNA molecule   Half-n-half Clue   7. The enzyme that replaces the nucleotides of the RNA primer with the appropriate DNA nucleotides is :   DNA Polymerase II   RNA Polymerase   DNA Ligase   DNA Gyrase   Half-n-half Clue