Nuclease who removes nucleotides from the ends of the DNA in one strand of the duplex.
Exonuclease
Endonuclease
Exo-endo nuclease
None of the above
As we have already studied in Tools of Biotechnology: Restriction Endonucleases -
Exonucleases remove nucleotides from the ends of the DNA either (5′ or 3′) in one strand of the duplex. Hence, the correct option is (a).