All the DNA tumor viruses gained their original reputation by serving as model systems in animal cells for studying gene expression and gene regulation, but SV40 and polyoma have been the jewel in the crown in these studies, as A phage was for the study of prokaryotes.
Since the discovery of Australia antigen and its association with type B hepatitis, molecular characterization of the components making up hepatitis B virus (RBV) have been pursued with worldwide interest.
The nucleotide sequence of the gene from which messenger RNA mole cules are transcribed is in a form that can be translated by cellular ribosomes into the amino acid sequence of a particular polypeptide, the product of the gene.
Research on antiviral drugs and their mode of action in infected cells. Recent studies on antivirals that are activated by the herpes simplex virus type l-coded thy midine kinase from a prod rug to an antiviral drug have opened new directions in the development of effective antiviral drugs.
Viral nucleic acids are replicated in infected cells (bacterial, plant, and animal) by virus coded enzymes with or without the involvement of proteins and enzymes coded by the host cells.
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