in simple terms, what role does RNA play in the flow of information at the cellular level?

Answer 1

DNA is transcribed into mRNA, which is translated into an amino acid sequence, which becomes a protein. So basically, RNA is the messenger between DNA and the amino acids that form a protein.

Of course, there's a lot more than that that goes on in the cell. The mRNA sequences are cut up in various ways to make different proteins, so RNA is also involved in regulating which proteins get made. There's another kind of RNA (called rRNA) that makes up part of the ribosomes, which is the structure that translates mRNA sequences into amino acid sequences. There are also tRNA molecules, which help transport amino acids to the ribosomes-mRNA complex and ensure that they are paired with the right sequence on the mRNA. Very small pieces of RNA, called micro RNA molecules, are extremely important in regulating protein production. And there are a few other types of RNA that I'm not going to list here because I'm not entirely certain I'll get them right. So in addition to serving as a messenger between DNA and amino acids, RNA molecules are involved in regulating which proteins are made, how much protein is made, and ensuring that the amino acids in a protein are lined up in the right order.

Answer 2

Emily Rose has given a very good answer, highlighting the different types of RNA and their role in the flow of information.

I'd like to expand a bit on the role of mRNA.

The step of transcription to RNA and then translation to protein is also an amplification step of the output (one DNA gives many RNA molecules which produce many protein molecules).

It also allows many more points of regulation of the production of proteins and it permits localised production of proteins in certain parts of the cell (when that is necessary).

Answer 3

This is all about gene expression and protien synthesis...
(it takes several stages, transcription, slicing, translation and transformation)
I will give you several points to make it eaiser for you.
mRNA is synthsized in the nuclues of the cell.
mRNA carries a message about the amino acid sequence in the protein.
each 3 nucleotides(codon) from the DNA codes for a single amino acid in the protein.
tRNA receives the message and brings amino acids into position.
then, protein is synthesized.

Answer 4

we females We continually elect dessert. We continually elect you to reserve dessert. What we never elect is which you will ask us if we elect dessert. that's redundant additionally decrease than no situation, as nicely enlistment interior the army, do we come across shipment pants a suitable decision and finally however that's cool which you stored all that element and money by going to Supercuts, we will not touch you for 2 weeks.

Answer 5

mRNa reads the codes in the DNA and tRNA helps in the production of amino acids.

Answer 6

check out www.sirna.com

and www. howstuffworks.com