Which of the following best describes what happens during a cross-over event?
a) tetrads cha...
Which of the following best describes what happens during a cross-over event?
a) tetrads change orientation as they line up along the center of the cell.
b) chromatids of homologous chromosomes exchange corresponding segments.
c) x and y sex chromosomes overlap and combine together during metaphase.
d) spindle fibers overlap and attach to the wrong chromosomes during anaphase.
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