Monday, July 27, 2009

In the double helix shape of DNA, what series of necleotides woud match the nucleotide series G-A-C-T?

A. A-G-T-C


B. C-T-G-A


C. T-C-A-G


D. A-C-G-A

In the double helix shape of DNA, what series of necleotides woud match the nucleotide series G-A-C-T?
C - T - G - A





IN DNA


C matches with G


A matches with T





In RNA


C matches with G


A maches with U
Reply:Brooks is right.





G%26amp;A go together. T%26amp;C go together.
Reply:Depends which way you are reading it.





5'-GACT-3'


3'-CTGA-5'





In the 5' to 3' direction it would be AGTC. Have you discussed that nuance in class?





Addendum: the reason I brought that up is that in real life, scientists ALWAYS describe nucleic acid sequences in the 5' to 3' direction.
Reply:B
Reply:Answer is B
Reply:B. and this isnt hard, just remember that A goes with T and C goes with G, and watch out for how it's written. always read it from left to right (imagine the other strand below the one written down)


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