Nucleotide coding for organismal traits/processes

Larry Farrell farrlarr at isu.edu
Tue Oct 19 10:10:57 EST 2004

That information will be addressed clearly in your text, or your 
instructor can quickly direct you to an appropriate resource.  That is 
what both are there for.

Brandon wrote:
> Sorry if this question has been asked in the past, I am studying Bio in 
> college and had a question I cannot find an answer for.
> As I understand it, DNA is 'unzipped' by protiens to make RNA which is then 
> used to execute the production of some other needed protien etc.  I know 
> that the nucleotides occur in some given order as determined by the organism 
> which is not the same order for any other organism (DNA fingerprint).  I 
> also know that the nucleotide sequence on one strand has a complementary 
> sequence on the other starnd of the 2x helix.  Since that complementary 
> sequence can also occur on the first strand, which starnd of the 2x helix is 
> used to access the info for the process?  Given the possibility, I guess, 
> that either strand could be used, the nucleotide sequences don't necessarily 
> mirror each other, so how is it that the 'correct' strand of the helix is 
> used?
> I hope this question is clear enough to be understood, any help would be 
> appreciated.
> Brandon 

Larry D. Farrell, Ph.D.
Professor of Microbiology
Idaho State University

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