Every 24 Hours, Every Genome in Every Cell of the Human

question 36

Multiple Choice

Every 24 hours, every genome in every cell of the human body is damaged 10,000 times or more. Given the possible DNA repair mechanisms, which order listed below would be most effective at repairing these as quickly as possible in order to prevent mutations from being carried forward in DNA replication?

• A) Proofreading by DNA polymerase, glycosylase enzyme activities, excision repair, SOS repair
• B) SOS repair, excision repair, glycosylase enzyme activities, proofreading by DNA polymerase
• C) SOS repair, proofreading by DNA polymerase, glycosylase enzyme activities, excision repair
• D) Glycosylase enzyme activities, SOS repair, proofreading by DNA polymerase, excision repair
• E) Proofreading by DNA polymerase, SOS repair, glycosylase enzyme activities, excision repair

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