What function of a cell would be altered by an inhibitor of the enxyme DNA helicase? Is it apoptosis?

For my study guide, I am to compare and contrast RNA to DNA. I need to tell the similarities and the differences. Our professor tells us to consider the monomers involved, the overall structure, and the function. This is what I have thus far... differences...RNA contains ribonucleic acid (ribose) whereas DNA contains deoxyribonucleic acid(dexoyribose), RNA has uracil whereas DNA has thymine, RNA is single stranded and DNA is a double helix similarities - ? Ok and I need to describe the process of gene expression, beginning with a gene and ending with formation of a protein. Is the process that DNA is transcribed into RNA and RNA is tranlated into a protein?