Nucleotide sequences!
Level
2
The nucleotide sequence of one DNA strand of a double helix is 5'-ATGCGGATTTAA-3'. What is the sequence of the other DNA strand?
5'-TACGCCTAAATT-3’ is correct
3'-TTAAATCCGCAT-5' is correct
3’-AUGCGGATTTAA-3’ is correct
5'-TTAAATCCGCAT-3' is correct
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1 solution
The complement of this DNA strand would have the sequence TACGCCTAAATT. However, as the two strands of DNA have opposite orientations, the 5' side of the given sequence corresponds to the 3' side of the other DNA strand. Therefore, the correct sequence is 3'-TACGCCTAAATT-5' which is the same as 5'-TTAAATCCGCAT-3'.