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  2. DNA virus - Wikipedia

    en.wikipedia.org/wiki/DNA_virus

    Orthopoxvirus particles. A DNA virus is a virus that has a genome made of deoxyribonucleic acid (DNA) that is replicated by a DNA polymerase.They can be divided between those that have two strands of DNA in their genome, called double-stranded DNA (dsDNA) viruses, and those that have one strand of DNA in their genome, called single-stranded DNA (ssDNA) viruses. dsDNA viruses primarily belong ...

  3. Glossary of virology - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_virology

    A double-stranded DNA virus; i.e. a virus whose genome is encoded in two complementary strands of DNA, which usually exist as one or more circular molecules. dsDNA viruses constitute Group I in the Baltimore classification system and use methods of replication and transcription that are broadly similar to those of larger organisms such as bacteria.

  4. DNA - Wikipedia

    en.wikipedia.org/wiki/DNA

    According to another study, when measured in a different solution, the DNA chain measured 22–26 Å (2.2–2.6 nm) wide, and one nucleotide unit measured 3.3 Å (0.33 nm) long. [10] The buoyant density of most DNA is 1.7g/cm 3. [11] DNA does not usually exist as a single strand, but instead as a pair of strands that are held tightly together.

  5. Filamentous bacteriophage - Wikipedia

    en.wikipedia.org/wiki/Filamentous_bacteriophage

    That is, the DNA single strand extends from one end of the phage particle to the other and then back again to close the circle, although the two strands are not base-paired. This topology was assumed to extend to all other filamentous phages, but it is not the case for phage Pf4, [ 15 ] for which the DNA in the phage is single-stranded but ...

  6. Nucleic acid - Wikipedia

    en.wikipedia.org/wiki/Nucleic_acid

    Deoxyribonucleic acid (DNA) is a nucleic acid containing the genetic instructions used in the development and functioning of all known living organisms. The chemical DNA was discovered in 1869, but its role in genetic inheritance was not demonstrated until 1943. The DNA segments that carry this genetic information are called genes.

  7. Realm (virology) - Wikipedia

    en.wikipedia.org/wiki/Realm_(virology)

    The names of realms consist of a descriptive first part and the suffix -viria, which is the suffix used for virus realms. [1] The first part of Duplodnaviria means "double DNA", referring to dsDNA viruses, [2] the first part of Monodnaviria means "single DNA", referring to ssDNA viruses, [3] the first part of Riboviria is taken from ribonucleic acid (RNA), [4] and the first part of ...

  8. Virus - Wikipedia

    en.wikipedia.org/wiki/Virus

    A virus has either a DNA or an RNA genome and is called a DNA virus or an RNA virus, respectively. Most viruses have RNA genomes. Plant viruses tend to have single-stranded RNA genomes and bacteriophages tend to have double-stranded DNA genomes. [26]: 96–99 Viral genomes are circular, as in the polyomaviruses, or linear, as in the ...

  9. Glossary of cellular and molecular biology (0–L) - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_cellular_and...

    3' untranslated region (3'-UTR). Also three-prime untranslated region, 3' non-translated region (3'-NTR), and trailer sequence.. 3'-end. Also three-prime end.. One of two ends of a single linear strand of DNA or RNA, specifically the end at which the chain of nucleotides terminates at the third carbon atom in the furanose ring of deoxyribose or ribose (i.e. the terminus at which the 3' carbon ...

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