B.
[email protected]Inversion is when the segments of a chromosome are rearranged and put in reverse order. This is visible in the transition from ABCD... to ACBD...
Centromeres split apart during anaphase.
spindle fibers pull the to sister chromatids apart.
4 is the answer; the cytotoxic t cell ain't with the bs.
+
Answer:
the cell membrane (or plasma membrane)
