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Which of the following best describes what happens during a cross-over event?

Tetrads change orientation as they line up along the center of the cell.

Chromatids of homologous chromosomes exchange corresponding segments.

X and Y sex chromosomes overlap and combine together during metaphase.

Spindle fibers overlap and attach to the wrong chromosomes during anaphase.

User Selvin
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Answer:

Second no.. is a right answer.

Chromatids of homologous chromosomes exchange corresponding segments.

User Jacc
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