chromosomes replicate and chromatin condenses
-pairing of homologous chromosomes occurs, each chromosome consists of two chromatids and crossing over occurs
chromosome centromeres attach to spindle fibers and HC line up at the equator
HC separate and move to opposite poles of the cell
the spindle fibers break down, chromosomes uncoil and form two nuclei, the cell divides
chromosomes condense, spindles form in the new cells and attach to chromosomes.
centromeres of chromosomes line up randomly at the equator of each cell.
centromeres split, sr. chromatids separate and move to opposite poles
four nuclei form around chromosomes, spindles break down, cells divide.
four new cells have formed, each nuleus contains a haploid number of chromosomes.