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Independent assortment refers to

  • A.the random orientation of each homologous pair
  • B.the exchange of segments between homologues
  • C.the separation of sister chromatids at anaphase
  • D.the replication of DNA before division begins

Answer: A

Which member of each pair goes to which pole is decided independently for every pair, so the combinations multiply. Crossing over is the separate mechanism that shuffles within a chromosome. The two mechanisms act at different scales and multiply together.

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