| A | B |
|---|
| Late Interphase | once chromosomes have been duplicated, they exist as two strands joined together by centromere. |
| prophase | chromosomes inside the nucleus begin to thicken. membrane around the nucleus disappears, and spindle fibers extend from opposite sides of the cell. spindle fber from each side attaches to the centromere of each duplicated chromosomes. |
| metaphase | the duplicated chromosomes line up across the middle of the cell. the centromeres then divide, separating the duplicate chromosomes. |
| anaphase | the spindle fibers shorten and pull the duplicate chromosomes through the cytoplasm toward the opposite sides of the cell. |
| telophase | sparated chromosomes cluster at the opposite sides of the cell, and a nuclear membrane forms around each group of chromosomes. the chromosomes untwist and become thinner and longer. |
| cytokinesis | at the end of telophase , the cytoplasm is divided between the new cells, and they separate. |
| heredity | passing of traits from parents to their offspring |
| genotype | the genetic makeup of an organism according to its genes |
