At metaphase I,the two homologous chromosomes of each bivalent are connected to spindle fibers from the _________.
A)same spindle pole
B)opposite spindle poles
C)the centromere of its neighboring chromosome
D)the centromere of its homologue
E)random centromeres of other chromosomes

Question

Quizplus · Accepted Answer

At metaphase I, homologous chromosomes line up along the equator of the cell in pairs called bivalents. The spindle fibers from opposite poles of the cell attach to each homologue, specifically to the kinetochore at the centromeres. This ensures that when the spindle fibers pull apart the two homologues during anaphase I, one chromosome from each pair will end up in each daughter cell, resulting in genetic diversity.

At Metaphase I,the Two Homologous Chromosomes of Each Bivalent Are