Homework Answers
Q1)Unwinds DNA molecule ahead of replication.
DNA molecule forms supercoil during replication. This supercoils may lead to DNA damage. This is prevented by topoisomerase 1. It releases the DNA supercoils by breaking a single strand of DNA and relaxing it followed by annealing the DNA strand to its original place.
Q2) Answer b. One time.
lagging strand are synthesised in fragments and hence they require repeated RNA primers to initiate the process of DNA synthesis. In case of lagging strand, it is synthesised continuously without any break and hence it requires RNA primer only once.
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Question 5 1 pts What is the role for bacterial topoisomerase I in DNA replication? Unwind...
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