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  2. Redondoviridae - Wikipedia

    en.wikipedia.org/wiki/Redondoviridae

    The redondovirus genome is circular, and by analogy to other CRESS viruses likely single stranded. Genomes range in size from about 3.0 to 3.1 kilobases. The genome encodes three inferred proteins: [citation needed] A Rep protein that likely initiates rolling-circle DNA replication. A Cap protein that likely self-assembles to yield icosahedral ...

  3. Human virome - Wikipedia

    en.wikipedia.org/wiki/Human_virome

    Some viruses cause disease, while others may be asymptomatic. Certain viruses are also integrated into the human genome as proviruses or endogenous viral elements. [1] Viruses evolve rapidly and hence the human virome changes constantly. [5] Every human being has a unique virome with a unique balance of species.

  4. Viral life cycle - Wikipedia

    en.wikipedia.org/wiki/Viral_life_cycle

    How viruses do this depends mainly on the type of nucleic acid DNA or RNA they contain, which is either one or the other but never both. Viruses cannot function or reproduce outside a cell, and are totally dependent on a host cell to survive. Most viruses are species specific, and related viruses typically only infect a narrow range of plants ...

  5. Viral eukaryogenesis - Wikipedia

    en.wikipedia.org/wiki/Viral_eukaryogenesis

    The viral eukaryogenesis hypothesis posits that eukaryotes are composed of three ancestral elements: a viral component that became the modern nucleus; a prokaryotic cell (an archaeon according to the eocyte hypothesis) which donated the cytoplasm and cell membrane of modern cells; and another prokaryotic cell (here bacterium) that, by endocytosis, became the modern mitochondrion or chloroplast.

  6. Viral replication - Wikipedia

    en.wikipedia.org/wiki/Viral_replication

    Viruses that contain double-stranded DNA (dsDNA) share the same kind of genetic material as all organisms, and can therefore use the replication enzymes in the host cell nucleus to replicate the viral genome. Many RNA viruses typically replicate in the cytosol, and can directly access the host cell's ribosomes to manufacture viral proteins once ...

  7. Viral metagenomics - Wikipedia

    en.wikipedia.org/wiki/Viral_metagenomics

    [1] [3] Sequencing viruses can be challenging because viruses lack a universally conserved marker gene so gene-based approaches are limited. [ 3 ] [ 4 ] Metagenomics can be used to study and analyze unculturable viruses and has been an important tool in understanding viral diversity and abundance and in the discovery of novel viruses.

  8. Monodnaviria - Wikipedia

    en.wikipedia.org/wiki/Monodnaviria

    Monodnaviria is a realm of viruses that includes all single-stranded DNA viruses that encode an endonuclease of the HUH superfamily that initiates rolling circle replication (RCR) of the circular viral genome. Viruses descended from such viruses are also included in the realm, including certain linear single-stranded DNA (ssDNA) viruses and ...

  9. Bunyavirales - Wikipedia

    en.wikipedia.org/wiki/Bunyavirales

    [5] Bunyaviruses belong to the fifth group of the Baltimore classification system, which includes viruses with a negative-sense, single-stranded RNA genome. They have an enveloped, spherical virion. Though generally found in arthropods or rodents, certain viruses in this order occasionally infect humans. Some of them also infect plants. [6]