1. 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   Hint Half-n-half Clue   2. In DNA, mutations at G-C sequences occur quite frequently since 5-methyl cytosine easily deaminates to form :   Thymine   Adenine   Guanine   Cytosine   Half-n-half Clue   3. What does transformation involve in Bacteria ?   the infection of cells by a phage DNA molecule   the creation of a strand of RNA from DNA   assimilation of external DNA into a cell   the creation of a strand of DNA from RNA   Half-n-half Clue   4. A mamalian cell typically has 1.2 meters (when completely outstretched) of double stranded DNA.The total time to duplicate the DNA is 5 hours. How many origins of replication are there if the rate of duplication is 16µmeters/min ?   250   15000   1   500   Half-n-half Clue   5. 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   6. The end of a DNA strand that has a phosphate group attached to the number 5 carbon of its terminal deoxyribonucleotide is called :   The 5 prime end (5')   The 3 prime end (3')   N-Terminus   C-Terminus   Half-n-half Clue   7. Which of the following agents is not a mutagen ?   Ultraviolet radiation   A retrovirus   A transposon or jumping gene   None of the above   Half-n-half Clue