What is meiosis and mitosis
Meiosis and Mitosis
Introduction
Meiosis and mitosis are two types of cell division that lead to the production of new cells. Mitosis is the process by which a single cell divides into two identical daughter cells, while meiosis is the process by which a single cell divides into four genetically diverse daughter cells. Both processes are crucial for the growth and development of organisms.
Mitosis
Mitosis is a type of cell division that occurs in somatic cells (non-reproductive cells) and results in the production of two identical daughter cells. The process of mitosis can be divided into four main stages: prophase, metaphase, anaphase, and telophase.
During prophase, the chromatin condenses into visible chromosomes, and the nuclear envelope breaks down. In metaphase, the chromosomes line up along the equator of the cell, and microtubules attach to the centromeres of each chromosome. In anaphase, the microtubules pull the sister chromatids apart, and they move towards opposite poles. Finally, in telophase, the nuclear envelope reforms around the two sets of chromosomes, and the cell divides into two identical daughter cells.
Meiosis
Meiosis is a type of cell division that occurs in reproductive cells (gametes) and results in the production of four genetically diverse daughter cells. The process of meiosis can be divided into two main stages: meiosis I and meiosis II.
During meiosis I, the chromatin condenses into visible chromosomes, and homologous chromosomes pair up and exchange genetic material in a process called crossing over. In metaphase I, the pairs of homologous chromosomes line up along the equator of the cell, and microtubules attach to each pair of chromosomes. In anaphase I, the homologous chromosomes separate and move towards opposite poles. Finally, in telophase I, the nuclear envelope reforms around the two sets of chromosomes, and the cell divides into two daughter cells.
During meiosis II, the sister chromatids of each chromosome separate and move towards opposite poles of the cell in a process similar to mitosis. Finally, in telophase II, the nuclear envelope reforms around each set of chromosomes, and the cell divides into four genetically diverse daughter cells.
Conclusion
In summary, mitosis and meiosis are two types of cell division that play important roles in the growth and development of organisms. Mitosis produces two identical daughter cells, while meiosis produces four genetically diverse daughter cells. Both processes are essential for the survival and reproduction of organisms.
What is meiosis and mitosis
Mitosis is meristmatic tissue in plants result in continous growth of plant through cells.equational division.
meiosis is process involving the reduction in amount of genetic material at end of meiosis | | (2) , 4 haploid cells are formed.
To make sure you are not studying endlessly, EduRev has designed Class 11 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 11.