How do DNA, RNA, Transfer RNA and Virus Strands Differ?

Question

As I understand it Viruses are just loose strands of DNA that hijack the normal functions of a cell when they enter it causing the cell to just create new Virus DNA strands instead of recreating its own DNA. Please correct me if I'm wrong.

Answer 1

Viruses can have either DNA or RNA, and if they have RNA it can be plus sense or negative sense. Plus sense is infectious, coding directly for the proteins, and negative sense is the complementary strand, just like a negative of a photo, therefor not infectious.

You've got the basic concept right though.

Answer 2

I'd better put things straight before you get more confused!

Inside the nucleus of everyone of your cells is your genome, It carrys all of your genetic information in the form of DNA. When a protein needs to be made, a copy of the gene is mdae in a process called transcription. The copy is in a form of RNA called hnRNA. This is turned into mRNA and this is used as an instruction booklet to make the protein.

Sometimes the cell needs just RNA, and so this is made straight from the DNA and exported from the nucleus. tRNA is a particular type of RNA that is used to carry amino acids to the ribosome to make proteins.

Viruses as the first guy said can have either a DNA or RNA genome. This is were it gets complicated. It can be double stranded DNA, single positive stranded RNA, negative sense single stranded RNA or double stranded RNA.

The dsDNA/dsRNA behave like our own. The positive sense RNA genomes behave like a piece of mRNA - the proteins are made straight from it. The Negative sense RNA have to made into DNA first by an enzyme called reverse transcriptase, before being made into mRNA for transcription.

I hope that clears it up. If you would like more info or something clarified, drop me an e-mail

Answer 3

this may well be a very undemanding explaination. DNA shops suggestions interior a cellular and includes each and all of the suggestions to make, properly, us. DNA won't be able to go away the nucleus even with the incontrovertible fact that, or it may be broken. that's the place mRNA is provided in. Messenger RNA is going into the nucleus and employing an enzyme noted as RNA polyimerase (sp. undesirable) unzips the DNA and makes a complimentry replica of the element of the DNA strand that ought to be copied. It then leaves the nucleus and strikes out to the cytoplasm the place it encounters a ribosome. tRNA produces an anticodon, it is the choice of three of the mRNA bases, (so if the DNA suggested ATC then the mRNA might say UAG, and the tRNA might produce an anticodon that asserts AUC) and the anticodon tells which protein the mRNA codes for. with a bit of luck that facilitates!

Answer 4

So to begin with every cell of our body has DNA in his genetical information.The rna are proteins that have information to construct other proteins,vitamins or do our vital functions.Some viruses like AIDS go inside the cells and put their RNA in our sell so that the cell thinks that this is a human informations.These rnas are conctructed in the Mitochondrion without the Mitochondrion noticing that this is instead a foreign RNA.So viruses like HIV can multiplicate in our body destroying our cells.