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Which of the following is true about Z-DNA helix?(a) It has alternating GC sequences(b) It is a permanent conformation of DNA(c) It tends to be found at the 3’ end of the genes(d) It has fewer base pairs per turn than B-DNAThe question was posed to me in an internship interview.This intriguing question comes from Nucleic Acid Structure in section Nucleotides and Nucleic Acids of Biochemistry

Answer»

The correct CHOICE is (a) It has alternating GC sequences

The best I can EXPLAIN: It is a temporary conformation of DNA

It has more BASE pairs per TURN than B-DNA.



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