imagine you are using a microscope to observe a cell undergoing cell division. how can you be sure that the cell in this figure is undergoing meiosis, rather than mitosis? select all that apply. a. there are two centrosomes, each comprised of a centriole pair, at opposite poles of the cell. b. crossing over is occurring between non-sister chromatids. c. kinetochore microtubules are attached to the centromeres of the chromosomes. d. homologous chromosomes are arranged at the metaphase plate. e. sister chromatids are physically connected by proteins called cohesins.