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metabolism - Set 11
What is the role of Rec BCD in DSB repair?
It helps to generate 3’ overhang
It helps by aligning the two homologous chromosomes
It helps in strand invasion
It chews off the flap
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Explanation
Rec BCD acts as an exonuclease that selectively chews off the 5’ end of DNA to generate a 3’ overhang. This is necessary for strand invasion by this 3’ overhang which brings about recombination repair.
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