Which one of the following is the palindromic sequence?
Correct answer: D. TTCC
- A. GATC
- B. GGTT
- C. CGAT
- D. TTCC
Explanation
A palindromic sequence is a nucleic acid sequence in a double-stranded DNA or RNA molecule whereby reading in a certain direction on one strand is identical to the sequence in the same direction on the complementary strand.
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About Structure of DNA
DNA structure includes nucleotides made of deoxyribose, phosphate and nitrogenous bases, arranged in two antiparallel polynucleotide strands. Questions cover the double helix, phosphodiester and hydrogen bonds, complementary base pairing between adenine and thymine and between guanine and cytosine, and the significance of major and minor grooves.
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