Which disease is caused by DNA virus?

Ocular Disease Caused by DNA Viruses

Virus	Family	Ocular target
Human cytomegalovirus (HHV5)	Herpesviridae	Retina
		Optic nerve
Human herpes virus 6 (HHV6)	Herpesviridae	Retina
Human herpes virus 8 (HHV8)	Herpesviridae	Conjunctiva

Which virus has the largest genome?

With the discovery of Mimivirus — the largest, most complex virus currently known — these assumptions may need to be reevaluated. This giant virus has a much larger size and bigger genome than any other known virus.

What does the Mimivirus infect?

Pathogenicity. Mimivirus may be a causative agent of some forms of pneumonia; this is based mainly on indirect evidence in the form of antibodies to the virus discovered in pneumonia patients.

What virus is a double-stranded DNA virus that causes disease?

Herpesviridae is a large family of DNA viruses that cause diseases in animals, including humans. The structure of herpes viruses consists of a relatively large double-stranded, linear DNA genome encased within an icosahedral protein cage called the capsid, which is wrapped in a lipid bilayer called the envelope.

How much DNA is in a virus?

Eight percent of our DNA consists of remnants of ancient viruses, and another 40 percent is made up of repetitive strings of genetic letters that is also thought to have a viral origin.”

Do any viruses have DNA?

Most viruses have either RNA or DNA as their genetic material. The nucleic acid may be single- or double-stranded. The entire infectious virus particle, called a virion, consists of the nucleic acid and an outer shell of protein. The simplest viruses contain only enough RNA or DNA to encode four proteins.

What is the smallest DNA virus?

AAV is the smallest DNA virus with an average size of 20 nm. AAV was discovered in 1965 as a defective contaminating virus in an adenovirus stock (Atchison et al., 1965).

What is the largest and smallest virus?

The smallest double-stranded DNA viruses are the hepadnaviruses such as hepatitis B, at 3.2 kb and 42 nm; parvoviruses have smaller capsids, at 18-26 nm, but larger genomes, at 5 kb. It is important to consider other self-replicating genetic elements, such as satelliviruses, viroids and ribozymes.

What percentage of human DNA is from viruses?

That’s how it ended up in our DNA today. In fact, about 8 percent of what we think of as our “human” DNA actually came from viruses.

Are viruses considered living?

Viruses are not living things. Viruses are complicated assemblies of molecules, including proteins, nucleic acids, lipids, and carbohydrates, but on their own they can do nothing until they enter a living cell. Without cells, viruses would not be able to multiply. Therefore, viruses are not living things.

Where does an enveloped virus replicate its viral DNA?

Following binding of viral envelope glycoproteins to cell membrane receptors, the virion is internalized and dismantled, allowing viral DNA to migrate to the cell nucleus. Within the nucleus , replication of viral DNA and transcription of viral genes occurs.

Is Cytomegalovirus a DNA or RNA type virus?

Human cytomegalovirus (HCMV) is classified as a DNA herpesvirus . A recent study showed that the HCMV virion contains not only DNA, but also four species of mRNA, indicating that this virus is more complex than previously believed.

Does virus contain both DNA and RNA?

RNA contains code for the manufacture of specific proteins within cells. Every virus contains a nucleic acid: some have DNA, and others have only RNA. Some viruses contain DNA ( deoxyribonucleic acid ) while some viruses have RNA ( ribonucleic acid ).

Is the cold virus DNA or RNA?

An RNA virus is a virus that has RNA (ribonucleic acid) as its genetic material. This nucleic acid is usually single-stranded RNA (ssRNA) but may be double-stranded RNA (dsRNA). Notable human diseases caused by RNA viruses include Ebola hemorrhoragic fever, SARS, Rabies, common cold, influenza, hepatitis C, West Nile fever, polio and measles.