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If one of the strands of DNA has the following sequence of bases in the 5'-3' direction : 5'-G-A-A-T-A-C-C-G-G-T-A-3' (i) What is the sequence of bases in the complementary strand ? (ii) Which base is closest to the 5'-end in the complementary strand ? |
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Answer» SOLUTION :According to base -PAIRING principle. G faces, C,T faces A and VICE -versa in the complimentary strand of DNA. Thus , the sequence of bases in the complementary strandis : `3'-C-T-T-A-T-G-G-C-C-A-T-5'`. (ii) Since the complimentary strands run in the OPPOSITE direction , THEREFORE , the closest base to the 5'-end is T. |
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