What is the effect of enzyme DNA ligase?
Correct answer: B. DNA fragments are joined together
- A. DNA is broken up at specific sites
- B. DNA fragments are joined together
- C. DNA replication occurs
- D. DNA transcription occurs
Explanation
DNA ligases play an essential role in maintaining genomic integrity by joining breaks in the phosphodiester backbone of DNA that occur during replication and recombination, and as a consequence of DNA damage and its repair. DNA ligase sticks the DNA nucleotide backbone by forming phosphodiester linkages between two successive nucleotides as shown in the diagram below:
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About Chromosomes
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