Q. What is the stretch of free DNA needed by NER machinery to repair the bulky lesions in TC NER?Which of the factors are necessary in TC NER but not in GG NER?

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Q. Which of the factor in prokaryotic NER acts as the helicase?

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Q. Which of the molecule in photolyase acts as an electron donor for recovery of the CPD?

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Q. You radiate a stock of E. Coli with UV rays and another stock is irradiated as control. The 1st stock is seen to be more resistant to alkylating agents. Which gene is expected to be triggered by this UV?

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Q. It is good that Guanine methyl transferase is absent in human beings.

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Q. What is the molecule released in 2nd step of Alk B reaction which returns the base to normal form?

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Q. What is the prokaryotic homologue of XPC?

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Q. Homologous recombination can’t occur in which stage?

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Q. The DSB are indistinguishable from normal chromosomes of shorter length.

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Q. What is the role of Rec BCD in DSB repair?

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Q. Rec BCD can chew 3’ end of the DSB till it reaches _____________ sequence.

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Q. Which of the following will be a marker of DSB?

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Q. Which of these is not a part of the tri protein complex in homologous DSB repair?

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Q. What is the structure of Rec A filament?

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Q. Which of these factors is not responsible for the assembly of Rec A oh the DNA?

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Q. Which of the following is not true about ATM kinase?

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Q. In DSB repair in G1 phase, which of these factors would be seen which is absent in other phases?

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Q. Which of the following is most flexible ligase?

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Q. Which of the following has both kinase and nuclease property?

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Q. Which of the following is not true about NHEJ?

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