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. Spindle fibers overlap and attach to the wrong chromosomes during anaphase.
C. X and Y sex chromosomes overlap and combine together during metaphase.
D. Chromatids of homologous chromosomes exchange corresponding segments.

Question

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. Spindle fibers overlap and attach to the wrong chromosomes during anaphase.
		C. X and Y sex chromosomes overlap and combine together during metaphase.
		D. Chromatids of homologous chromosomes exchange corresponding segments.

anonymous · Answer

D

anonymous · Answer

D. Chromatids of homologous chromosomes exchange corresponding segments.