Centrosomes are
a. constricted regions of chromosomes.
b. regions where microtubules originate.
c. the central region of a cell.
d. the region where the membrane constricts during cytokinesis.

Question

Centrosomes are 
a.	constricted regions of chromosomes. 
b.	regions where microtubules originate. 
c.	the central region of a cell. 
d.	the region where the membrane constricts during cytokinesis.

alphadxg · Answer

It's B, centrosomes are where microtubule organizing center are, that is what they are referred to. The microtubules (Polar and non-polar) come from these to help elongate the cell, and attach to the chromosomes