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