Which of these DNA repair mechanisms is most likely to result in mutation?Group of answer choicesBase excision repair.Non-homologous end-joining.Mismatch repair.Nucleotide excision repair.

Which of the four DNA repair systems described in this subject is specific to E coli?Group of answer choicesBase excision repairNucleotide excision repairDirect repairMismatch repair

Which of the following statements is INCORRECT?Group of answer choicesDamaged DNA is usually repaired by cells.Mutations are more likely to occur in rapidly dividing cells.Cells with damaged DNA often undergo apoptosis.Promotors cause mutations in DNA.

Repair of DNA damage in eukaryotic cells involves which of the following processes?  1. Detection of DNA damage  2. DNA synthesis   3. Excision of DNA damage  4. Transcription of repaired DNAGroup of answer choices1 and 21, 3, 41, 2, 32, 3, 4All of 1-4

Which is true about base excision repair:Group of answer choicesIt can repair pyrimidine dimers.DNA polymerase I replaces the short row of nucleotides using its 3’ to 5’ exonuclease activity.In E. coli, it repairs a mismatch in a newly synthesised DNA strand.DNA ligase is required to repair the nick formed by DNA polymerase I

Which repair pathway would be used to repair a cytosine that has been turned into a uracil Group of answer choices nucleotide excision repair Base excision repair None of them. Uracil is a normal base so this is not a problem Mismatch repair