Determine whether the following statements are true or false. If false you must give a simple reason describeing why.

a. Most prokaryotic genes have introns interspersed among the coding regions.

b. Eukaryotic transcription factors bind to regulatory sequences that may be located at great distances away from the genes that they regulate.

c. Cancer is believed to develop from a progressive accumulation of mutations in genes that normally regulate the cell cycle.

d. The enzyme reverse transcriptase is used for creating genomic libraries.

e. Gel electrophoresis is used to separate DNA fragments of different sizes.

f. DNA polymerase is an enzyme that cuts DNA, creating "sticky ends" that can be used for creating recombinant DNA molecules.

g. A distinguishing characteristic of temperate bacteriophage is their ability to reproduce by a lysogenic cycle with the formation of a prophage that is integrated into the host cell's chromosome.