How is retrovirus different from other viruses?
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How is retrovirus different from other viruses?
Retroviruses differ from other viruses in that each virion contains two complete copies of the single-stranded RNA genome.
Are retroviruses and viruses the same?
A retrovirus is a virus that uses RNA as its genetic material. When a retrovirus infects a cell, it makes a DNA copy of its genome that is inserted into the DNA of the host cell. There are a variety of different retroviruses that cause human diseases such as some forms of cancer and AIDS.
What is the difference between RNA virus and retrovirus?
Retroviruses (Group VI) have a single-stranded RNA genome but, in general, are not considered RNA viruses because they use DNA intermediates to replicate.
Is Zika a retrovirus?
The infection, known as Zika fever or Zika virus disease, often causes no or only mild symptoms, similar to a very mild form of dengue fever. While there is no specific treatment, paracetamol (acetaminophen) and rest may help with the symptoms….
| Zika virus | |
|---|---|
| Family: | Flaviviridae |
| Genus: | Flavivirus |
| Species: | Zika virus |
What is the difference between DNA and RNA with respect to their biological function?
DNA is stable under alkaline conditions, while RNA is not stable. DNA and RNA perform different functions in humans. DNA is responsible for storing and transferring genetic information, while RNA directly codes for amino acids and acts as a messenger between DNA and ribosomes to make proteins.
Is polio a DNA or RNA virus?
Poliovirus, the prototypical picornavirus and causative agent of poliomyelitis, is a nonenveloped virus with a single-stranded RNA genome of positive polarity. The virion consists of an icosahedral protein shell, composed of four capsid proteins (VP1, VP2, VP3, and VP4), which encapsidates the RNA genome (1).
What makes retroviruses unique?
Retroviruses are a unique class of single-stranded ribonucleic acid (RNA) containing viruses, which replicate their genome through a double-stranded viral deoxyribonucleic acid (DNA) intermediate in the nucleus of the host cell.
What is an example of a retrovirus?
HIV (Human Immunodeficiency Virus ) is the most common example of a retrovirus. A retrovirus is a virus that uses reverse transcription as a way of replicating its genetic material (in the case of HIV, it may be DNA or RNA) inside the host cell.
How does a retrovirus replicate?
There are seven steps in the replication cycle of the retrovirus. The first step is attachment, in which the retrovirus uses one of its glycoproteins to bind to one or more specific cell-surface receptors on the host cell. Some retroviruses also employ a secondary receptor, referred to as the co-receptor.
What is a retrovirus Quizlet?
A retrovirus is an RNA virus that replicates in a host cell through the process of reverse transcription. First it uses its own reverse transcriptase enzyme to produce DNA from its RNA genome, reverse of the usual pattern, thus retro.