Biology

Difference between Karyokinesis and Cytokinesis

Main difference

The cell is the basic unit of life; it can grow, reproduce, and perform all the special functions necessary for life. Cells reproduce or divide because it is a basic need to survive. Thousands of cells die daily in our body and thousands are produced by the process of cell division. Living cells divide by two main processes called mitosis and meiosis, division that is subclassified into two processes, karyokinesis and cytokinesis. Karyokinesis is the process of dividing the nucleus of a cell during the division phase (mitosis or meiosis), while cytokinesis is the dividing process of the cell’s cytoplasm whereby the cell eventually divides into daughter cells. point out that karyokinesis takes place first and then comes the process of cytokinesis,

What is karyokinesis?

Karyo means “nucleus” and kinesis means “synthesis or division.” Karyokinesis means division of the nucleus. It is defined as the process by which the nucleus of the cell divides in two and moves separately to each side of the cell. A cell first undergoes karyokinesis in division in which one nucleus divides into two nuclei, and then further division proceeds in the process of cytokinesis. In karyokinesis, DNA condensation occurs, the chromosomal content is divided equally or half in each nucleus and passed on to the next generation or daughter cells. In this process, the first metaphase occurs and is followed by anaphase. Finally, telophase occurs in which the nuclear membrane in the center of the nucleus reappears, dividing it in two. During this place, the content of the nucleus of the cell under division increases, The core became large and convoluted before exhaustion. The interesting thing is that karyokinesis can occur without cytokinesis.

Comparative chart
Karyokinesis Cytokinesis
Sense Karyo means “nucleus” and kinesis means “synthesis or division.” Cyto means “cytoplasm” and kinesis means “synthesis or division.”
Principal function Karyokinesis is the process of division of the nucleus of a cell during the division phase (mitosis or meiosis). Cytokinesis is the process of dividing the cytoplasm of the cell.
Steps In Karyokinesis, the metaphase is the first step. In cytokinesis, metaphase is the second step.
Divide Karyokinesis divides genetic material equally. Cytokinesis divides the cytoplasm and organelles, including nuclei, into their daughter cells.
Dependence Karyokinesis is not dependent on cytokinesis; it can occur without being followed by cytokinesis. Cytokinesis cannot occur without karyokinesis, which means it is dependent on karyokinesis.

What is cytokinesis?

Cyto means “cytoplasm” and kinesis means “synthesis or division.” Cytokinesis means cytoplasmic division. It is defined as the process by which the cytoplasm of the cell divides in two and moves separately towards each lateral cell, resulting in the division of the cell in two. A cell first undergoes karyokinesis in division in which one nucleus divides into two nuclei, and then further division proceeds in the process of cytokinesis in which the cell’s cytoplasm divides. In cytokinesis, all of the mother cell’s cytoplasm and organelles move to each daughter cell and divide. Metaphase is the second step of cytokinesis. Remember that the cell first undergoes karyokinesis in division and then goes on to cytokinesis, this shows us that cytokinesis depends on karyokinesis occurring first.

Karyokinesis versus cytokinesis
  • Karyo means “nucleus” and kinesis means “synthesis or division,” while Cyto means “cytoplasm” and kinesis means “synthesis or division.”
  • Karyokinesis is the process of dividing the nucleus of a cell during the division phase (mitosis or meiosis), while cytokinesis is the process of dividing the cell’s cytoplasm.
  • Karyokinesis occurs first and cytokinesis occurs second in cell division.
  • In Karyokinesis, metaphase is the first step, while in cytokinesis, metaphase is the second.
  • Karyokinesis divides genetic material equally, on the other hand, cytokinesis divides cytoplasm and organelles, including nuclei, into their daughter cells.
  • Karyokinesis is not dependent on cytokinesis, it can occur without being followed by cytokinesis, while cytokinesis cannot occur without karyokinesis, which means it is dependent on karyokinesis.

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