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Orientation of homologous chromosomes

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Explain how the orientation of homologous chromosomes during metaphase I of meiosis contributes to greater variation in gametes.

a) The homologous chromosomes are paired tightly during metaphase I and undergo crossover as the synaptonemal complex forms a lattice around them.

b) Because homologous chromosomes dissociate from the spindle fibers during metaphase I, they move randomly to the daughter cells.

c) Recombination of maternal and paternal chromosomes occurs in metaphase I because the homologous chromosomes are not connected at their centromeres.

d) The random alignment of homologous chromosomes at the metaphase plate ensures the random destination of the chromosomes in the daughter cells.

Reference no: EM132680675

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