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categoryأحياء schoolبكالوريوس event_available2026-07-16

السؤال

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20) If the two Holliday junctions during meiotic recombination are resolved by an North-South cut, the resulting chromosomes will be... A) shorter due to the loss of information during the process B) recombinant due to a crossover C) potentially undergoing gene conversion only, without a crossover D) repaired by non-homologous end joining E) one chromosome will be shorter and the other longer due to the transfer of information 21) A Down syndrome individual is produced as a consequence of... A) none of the answers is correct B) nondisjunction C) polyploidization D) ectopic recombination E) inversions 20) 21)

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