Thursday, April 10, 2008

DNA-RNA-Protein

DNA carries the genetic information of a cell and consists of thousands of genes. Each gene serves as a recipe on how to build a protein molecule. Proteins perform important tasks for the cell functions or serve as building blocks. The flow of information from the genes determines the protein composition and thereby the functions of the cell.

The DNA is situated in the nucleus, organized into chromosomes. Every cell must contain the genetic information and the DNA is therefore duplicated before a cell divides (replication). When proteins are needed, the corresponding genes are transcribed into RNA (transcription). The RNA is first processed so that non-coding parts are removed (processing) and is then transported out of the nucleus (transport). Outside the nucleus, the proteins are built based upon the code in the RNA (translation).

http://nobelprize.org/educational_games/medicine/dna/index.html


5 comments:

Anonymous said...

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Annoymous said...

thats informative

ici said...

thanx for visiting my blog. read through yours...really great input. I've forgotten most of what DNA and RNA is about, learnt that 5 years ago, and left it somewhere hehe.

MAHT said...

hi,may i be a friend of yours? how can get in touch with you ?

Mlle M. said...

Your blog is super interesting! My brother would love it - I'm forwarding it to him. Thanks for checking out my blog as well. :)