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What is called the group of viruses having both dna and rna?
The group of viruses that have both DNA and RNA in their genome are known as retroviruses. Retroviruses have RNA as their genetic material, but use an enzyme called reverse transcriptase to transcribe their RNA into DNA once they infect a host cell. Examples of retroviruses include HIV and HTLV.
What is the difference between DNA viruses and RNA viruses?
There are several differences for example; most DNA viruses use the DNA polymerases of of the host cell to synthesize new genomes along the templates provided by the viral DNA, in contrast to replicate their genomes, RNA viruses use virally encoded polymerases that can use RNA as a template. RNA viruses usually retain their RNA within capsids, whilst DNA viruses are less "packaged" usually retained within say a head, or a capsomere. The main difference of course, is that DNA viruses contain either a doubled stranded DNA (dsDNA) or a single stranded (ssDNA), and RNA viruses contain dsRNA or ssRNA. There are of course several other differences, but these are the ones I know of.
Viruses that contain RNA as their genetic information are called?
A retrovirus contains RNA as its genetic information. When a retrovirus infects a cell, it uses its own enzymes to produce DNA from its RNA. Then the DNA becomes part of the host cell's genome, and it will be transcribed and translated along with the host cell's DNA, thereby turning the cell into a virus factory. It is called a retrovirus because the original order of DNA ---> RNA ---> protein is reversed to RNA ---> DNA ---> RNA ---> protein.
What does some disease causing viruses have instead of DNA?
Some disease-causing viruses have RNA instead of DNA as their genetic material. RNA viruses include the influenza virus, HIV, and the common cold virus.
Is the genetic material in viruses double stranded DNA or RNA?
The genetic material in viruses can be either double-stranded DNA or RNA.
What viruses have Rna in their core rather than Dna?
They are called Rna viruses. Rna retro-viruses are a different and somewhat more complex matter.
Is H1N1 influenza a retrovirus?
No it is not. Retroviruses are RNA viruses that can change their RNA into DNA for cell infection (example HIV). Influenza viruses are also RNA viruses, but they do not transcribe the RNA into DNA. Some people think the R in RNA stands for retrovirus, but it stands for ribonucleic acid.
Do virus have protein coat?
Yes. Viruses contain a protein coat called a capsid. Inside this capsid will be DNA or RNA but never both. Viruses that contain RNA are called retroviruses. They also contain the enzyme reverse transcriptase that allows them to convert RNA into double-stranded DNA once it infects a cell.
Do all viruses have protein coats?
yes
What is the only characteristics shared by living cells and viruses?
Viruses are composed of two main parts: an outer protein covering called a capsid and an inside core of either DNA or RNA. Not both DNA and RNA. Living cells also contain DNA and RNA. These are the only thing shared by living cells and viruses.
Does RNA virus have Reverse transcriptases in them?
The RNA viruses that contain reverse transcriptases are collectively called retroviruses among which are: HIV, human immunodeficiency virus (AIDS); RNA tumor viruses (leukemia)
Are enteroviruses RNA viruses?
Yes, enteroviruses are RNA viruses belonging to the Picornaviridae family. Their genome is composed of single-stranded RNA.
How does viruses classificate?
DNA and RNA viruses.
Does viruses contains genetic material?
All viruses have genes made from either DNA or RNA but they themselves don't have DNA. (Viruses use tRNA or mRNA or DNA as a tool for infecting host cells, but they they do not use either for their own internal bio-mechanics)
Why does a virus not have both DNA and RNA?
Because it doesn't use it's DNA or RNA to function, it uses it to inject into a cell and switch the cell's instructions to its own so the cell will make more viruses. Cells have DNA and RNA to tell the cell what to do, but viruses just do it naturally. Viruses have no use for both.
Does viruses contain RNA?
Some viruses contain RNA; these are known as retroviruses. Others contain DNA.
What virus employs the use of an RNA-dependent RNA polymerase?
+RNA viruses
