New viruses can be produced by copying the integrated DNA into RNA and packaging this into virus coat proteins the latter coded by the env genes on the virus genome. Prokaryotic Eukaryotic Cells Chapter Exam Instructions. Cell Dna The Genetic Material Britannica All cells whether prokaryotic or eukaryotic have a membrane that envelops the cell regulates what moves in and out selectively permeable and maintains the electric potential of the cellInside the membrane the cytoplasm takes up most of the cells volume. . Chemical messengers or hormones bind tightly to their receptor proteins on the outside of a cell. The nucleotides hold a message inside DNA that is decoded by the cell to make proteins molecules that are needed for all cell structure and function. The helper T-cell will no longer bind to the B-cell and as a result the B-cell will not be activated. Once inside a cell the RNA genome is copied into DNA by the reverse...