Answer: 3'TTAGCG 5' complements the section of DNA.
Explanation:
Through covalent bonding, nucleotides on a single strand of DNA are bound together. Genetic information is stored in double helixes of DNA molecules (Doxyribonuclease).
Base pairs are formed, due to hydrogen bonding between bases, between nucleotides on opposite strands. Adenine forms double bonds with thymine here while cytosine forms triple bonds with guanine, which is referred to as Chargaff's rule.
Thus, the sequence complements the segment of DNA in the 3'→5' or 'reverse' direction. So, for 5’ CGCTAA 3’ its reverse complement is 3'TTAGCG 5'
