During metaphase 1, bivalents are arranged at random on the equator of the spindle. This means that the orientation of any one homologous pair is not dependent on the orientation of any other pair.
When the homologous chromosomes are pulled apart at anaphase 1, a chromosome of one pair is equally likely to be separated along with either member of any other homologous pair.
The process of independent assortment is very important in producing variation in the next generation
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