Viruses need a living cell to survive Viral genome is released inside the cytoplasm of the host cell Virus genomes are made of DNA or RNA Not both Single stranded (ss) OR double stranded (ds), Why Study Viruses, Viruses And Molecular Biology, Major Virology Milestones, Phage” group made significant discoveries/contributions to the field of molecular biology Bacteriophages hold promise as antibiotics Particularly in antibiotic resistant bacteria Immune reaction to phages remains a serious obstacle Study of tumor viruses let to a clearer understanding of cancer Viruses can be engineered to carry exogenous genes The exogenous genes can be inserted in the host’s genome When utilizing a virus to insert genes into a host, we refer to that virus as a Vector Virus Vector virus hold promise as therapeutic agents Immune response remains an issue Viruses can be engineered to carry exogenous genes The exogenous genes can be inserted in the host’s genome When utilizing a virus to insert genes into a host, we refer to that virus as a Vector Virus Vector virus hold promise as therapeutic agents Immune response remains an issue