An enzyme which can seal a nick in a DNA duplex is called a

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The enzyme that can seal a nick in a DNA duplex is called a ligase. It joins the phosphate backbone of the two adjacent nucleotides to form a covalent bond, repairing the nick in the DNA strand. Sigma factors are proteins that initiate transcription in prokaryotes. Lipase is an enzyme that breaks down lipids. Reverse transcriptase is an enzyme that converts RNA into DNA. Nuclease is an enzyme that breaks down nucleic acids.

An Enzyme Which Can Seal a Nick in a DNA