Around 74% of the nucleotides in the hepatitis D virus genome are complementary, meaning they bind to one another. This compresses the circular genome into a rod-like form (Figure 2).

Double-stranded (ds)RNA viruses. As shown in part a of the figure, virus attachment and endocytosis deliver a virion core that contains viral genomic dsRNA and viral RNA polymerase ...

Viruses, then, may have existed before bacteria, archaea, or eukaryotes (Figure 4; ... Could today's single-stranded RNA viruses be descendants of these precellular RNA molecules?

(Left) As in Figure 5, RNA has a hydroxyl group that is 5 atoms (just the right bonding distance) from the phosphate group (blue arrow) that holds RNA (and DNA) together. This promotes a cyclization ...

A study published in Science today (April 7) describes thousands of newly discovered RNA viruses and doubles the number of phyla in which they’re grouped from 5 to 10.. A team led by Ohio State ...

Study: Coronavirus RNA Synthesis Takes Place within Membrane-Bound Sites.Image Credit: winui/Shutterstock. The study recently published in the journal Viruses, also demonstrates and proves the ...

To help explain antigenic variation, it’s worth quickly looking at the structure of the virus (Figure 2). First, all influenza viruses have single stranded, negative-sense RNA. This is the ...

Influenza, SARS, Ebola, HIV, the common cold. All of us are quite familiar with these names. They are viruses—a little bit of genetic material (DNA or RNA) encapsulated in a protein coat.

So, here you have RNA viruses that function as clouds. Then we realized that Polio is an RNA virus, and so is yellow fever and COVID-19. ... Our challenge was to determine if we could trick the body ...

Retroviruses are RNA viruses that are characterized by the integration of their RNA into the host genome after reverse transcription. This leads to prolonged expression of the gene of interest.