1. An enzyme that recognizes and cuts DNA only at a particular sequence of nucleotides is often called :   Restriction endonuclease   RNA polymerase   Photolyase   DNA glycosylase   Hint Half-n-half Clue   2. 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   3. The enzyme that stitches Okazaki fragments together (along the lagging strand) is called :   Holoenzyme   DNA Ligase   DNA Polymerase II   Topoisomerase   Half-n-half Clue   4. 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   5. The enzyme (made of proteins and RNA) that elongates chromosomes by adding TTAGGG sequences to the end of existing chromosomes is :   Telomerase   Exonuclease   Endonuclease   Amylase   Half-n-half Clue   6. 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   7. In 1940, Nobel Laureate Barbara McClintock discovered sequences of DNA that can move around to different positions within the genome of a single cell and cause mutations. These sequences (first observed in maize) are called :   Transposons   inverted repeats   direct repeats   sticky ends   Half-n-half Clue