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  2. Viral disease testing - Wikipedia

    en.wikipedia.org/wiki/Viral_disease_testing

    Tests for viral DNA can look for either DNA or RNA. They typically use reverse transcriptase polymerase chain reactions to multiply the amount of genetic material in a small sample into an amount that is measurable. The genetic material is generally taken from the nose/sinus. One study found clinical sensitivity was found to range from 66 to 80 ...

  3. Laboratory diagnosis of viral infections - Wikipedia

    en.wikipedia.org/wiki/Laboratory_diagnosis_of...

    Detection of viral RNA and DNA genomes can be performed using polymerase chain reaction. This technique makes many copies of the virus genome using virus-specific probes. Variations of PCR such as nested reverse transcriptase PCR and real time PCR can also be used to determine viral loads in patient serum.

  4. Lytic cycle - Wikipedia

    en.wikipedia.org/wiki/Lytic_cycle

    The virus's nucleic acid uses the host cell's metabolic machinery to make large amounts of viral components. [2] In DNA viruses, the DNA transcribes itself into messenger RNA (mRNA) molecules that are then used to direct the cell's ribosomes. One of the first polypeptides to be translated destroys the host's DNA.

  5. Nucleic acid test - Wikipedia

    en.wikipedia.org/wiki/Nucleic_acid_test

    Rotavirus. A nucleic acid test (NAT) is a technique used to detect a particular nucleic acid sequence and thus usually to detect and identify a particular species or subspecies of organism, often a virus or bacterium that acts as a pathogen in blood, tissue, urine, etc. NATs differ from other tests in that they detect genetic materials (RNA or DNA) rather than antigens or antibodies.

  6. Viral replication - Wikipedia

    en.wikipedia.org/wiki/Viral_replication

    It is the first step of viral replication. Some viruses attach to the cell membrane of the host cell and inject its DNA or RNA into the host to initiate infection. Attachment to a host cell is often achieved by a virus attachment protein that extends from the protein shell (), of a virus.

  7. Reverse transcription polymerase chain reaction - Wikipedia

    en.wikipedia.org/wiki/Reverse_transcription...

    Two-step RT-PCR, as the name implies, occurs in two steps. First the reverse transcription and then the PCR. This method is more sensitive than the one-step method. Kits are also useful for two-step RT-PCR. Just as for one-step PCR, use only intact, high-quality RNA for the best results. The primer for two-step PCR does not have to be sequence ...

  8. The Hardest Working Royal of 2024 Is... - AOL

    www.aol.com/lifestyle/hardest-working-royal-2024...

    Yui Mok - WPA Pool/Getty Images. Princess Anne secured the top spot, yet again, with 217 royal engagements and a 2.4% increase from 2023, according to the report.November was her busiest month ...

  9. RNA virus - Wikipedia

    en.wikipedia.org/wiki/RNA_virus

    Double-stranded RNA viruses (Group III) contain from one to a dozen different RNA molecules, each coding for one or more viral proteins. Positive-sense ssRNA viruses (Group IV) have their genome directly utilized as mRNA, with host ribosomes translating it into a single protein that is modified by host and viral proteins to form the various ...

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    nucleic acid test wikipedianucleic acid test