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Double-stranded RNA viruses (dsRNA viruses) are a polyphyletic group of viruses that have double-stranded genomes made of ribonucleic acid.The double-stranded genome is used as a template by the viral RNA-dependent RNA polymerase (RdRp) to transcribe a positive-strand RNA functioning as messenger RNA (mRNA) for the host cell's ribosomes, which translate it into viral proteins.
Life cycle of S. cerevisiae virus L-A. Viral replication is cytoplasmic. Replication follows the double-stranded RNA virus replication model. Double-stranded RNA virus transcription is the method of transcription. Translation takes place by -1 ribosomal frameshifting, +1 ribosomal frameshifting, viral initiation, and RNA termination-reinitiation.
The adenovirus genome is linear, non-segmented double-stranded (ds) DNA that is between 26 and 48 kbp. [2] This allows the virus to theoretically carry 22 to 40 genes. Although this is significantly larger than other viruses in its Baltimore group, it is still a very simple virus and is heavily reliant on the host cell for survival and ...
It is a double-stranded DNA virus in the subfamily Tevenvirinae of the family Straboviridae. T4 is capable of undergoing only a lytic life cycle and not the lysogenic life cycle . The species was formerly named T-even bacteriophage , a name which also encompasses, among other strains (or isolates), Enterobacteria phage T2 , Enterobacteria phage ...
Viral replication is cytoplasmic. Entry into the host cell is achieved by penetration into the host cell. Replication follows the double-stranded RNA virus replication model. Double-stranded RNA virus transcription is the method of transcription. The virus exits the host cell by cell to cell movement. Fungi serve as the natural host. [1] [3]
After the uncoated virus particles penetrate the endosomes, early transcription of the double stranded RNA genome by viral polymerase occurs inside the uncoated (naked) viral core. This process occurs in this manner so the viral double stranded RNA is not exposed to the cytoplasm , as this would cause the cell to attack the viral particle.
It has a three-part, segmented, double-stranded RNA genome, totalling ~13.5 kb in length. Φ6 and its relatives have a lipid membrane around their nucleo capsid , a rare trait among bacteriophages. It is a lytic phage , though under certain circumstances has been observed to display a delay in lysis which may be described as a "carrier state".
Double-stranded RNA virus transcription is the method of transcription. The virus exits the host cell by cell-to-cell movement. Fungi and plants serve as the natural host. [4] [6] Cryspoviruses infect apicomplexian protozoa of the genus Cryptosporidium, [7] while viruses of the other genera infect plants and fungi. It has been suggested that ...