Dec 26, 2020 · There are different phases in mitosis which are prophase, metaphase, anaphase, and telophase but the phase of mitosis where chromosomes lineup along the middle of the dividing cell is called metaphase. During metaphase, the spindle fibers attach to the centromere of each pair of chromatids, this sister chromatids lineup in the center of the cell.
three parts: interphase, mitosis, and cytokinesis (figure 1). In the first growth phase (G 1), the cell grows and prepares to duplicate its DNA. In the synthesis phase (S), the chromosomes are replicated. In the second growth (G 2), the cell prepares to divide. There are two types of nuclear division: mitosis and meiosis.
Sister chromatids separate, and the now-daughter chromosomes move to opposite poles of the cell. To see anaphase animated, click the image. Anaphase begins when the duplicated centromeres of each pair of sister chromatids separate, and the now-daughter chromosomes begin moving toward opposite poles of the cell due to the action of the spindle.
Mitosis Labster ... Mitosis Labster
Chromosomes attach to spindle Centrosome at one spindle pole Daughter chromosomes METAPHASE ANAPHASE TELOPHASE AND CYTOKINESIS Spindle Metaphase plate Nucleolus forming Cleavage furrow Nuclear envelope forming Figure 12.6 Metaphase: Chromosomes align in center of cell Anaphase: Sister chromatids separate Telophase: Complete set of chromosomes ...
At the end of prophase, the nuclear envelope breaks down into vesicles. Metaphase: The chromosomes align at the equitorial plate and are held in place by microtubules attached to the mitotic spindle and to part of the centromere. Anaphase: The centromeres divide. Sister chromatids separate and move toward the corresponding poles. Telophase: Daughter chromosomes arrive at the poles and the microtubules disappear.
Each daughter cell formed by mitosis has the same kinds of chromosomes as the parent cell. The parent cell and the daughter cells are genetically identical. During mitosis, the centromeres divide and the sister chromatids stay together.