Which of the following is known as joining enzyme or repair enzyme of DNA?
Transcriptase
Endonucleases
Ligases
Polymerase
A
Ligases
B
Endonucleases
C
Transcriptase
D
Polymerase
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Solution
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In molecular biology, DNA ligase is a specific type of enzyme that facilitates the joining of DNA strands together by catalyzing the formation of a phosphodiester bond. It plays a role in repairing single-strand breaks in duplex DNA in living organisms. Single-strand breaks are repaired by DNA ligase using the complementary strand of the double helix as a template, with DNA ligase creating the final phosphodiester bond to fully repair the DNA.
Therefore, the correct answer is option C.
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