Written by Merel Dagher (PEACE Advisor)
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The correct answer is d. Recombination occurs in Meiosis I and allows for the exchange of some DNA between homologous chromosomes – when the meiotic division occurs, the cells, as a result, are different from their parents (potentially) and different from each other. RNA splicing yields different strands of RNA due to the exclusion of various intron sequences. Mutations cause genes to be knocked out or new traits to arise, which contributes to genetic diversity.