Which diagram most accurately shows the arrangement of homologous chromosomes during the first metaphase of mitosis?

Question

Quizplus · Accepted Answer

In the first metaphase of mitosis, homologous chromosomes do not pair up (that occurs in meiosis I). Instead, each chromosome aligns at the equator of the cell and becomes attached to spindle fibers via its kinetochore. This is shown in diagram B, where each chromosome is represented as a single line and is aligned at the equator of the cell with spindle fibers attached to its kinetochore. Diagrams A, C, D, and E are incorrect because they show homologous chromosomes paired up or otherwise arranged incorrectly.

Which Diagram Most Accurately Shows the Arrangement of Homologous Chromosomes