Meiosis is a type of cell division whereby the cell divides two times through two phases known as Meiosis I and Meiosis II to form 4 daughter cells. Each daughter cell contains half of the parent’s number of chromosomes. This process occurs only in the sex cells which are spermatozoa and ova.
While meiosis II, the second division, separates the two copies of DNA in the same way as mitosis. Finally, meiosis in one cell produces four cells, each with only one copy of the genome, which is half the normal number as shown in the chart below. A diagram showing the stages of each type of cell division (phases of mitosis and meiosis).
There are normally four phases of mitosis which are prophase, anaphase, metaphase, and telophase. The explanation of these four steps will be done below. A diagram showing the stages of mitosis and what happens at each stage.
They occur in phases or stages that are called the Cell Cycle Phases or Stages. Each of the stages of the cell cycle has various events going on that occur before the next stage or phase occurs. The cell cycle phases will be discussed with the aid of well-labeled diagrams. What is the purpose of the cell cycle?
Stages of Oogenesis The stages of Oogenesis can be grouped into two phases: Prenatal and Postnatal stages of maturation of oocytes. Prenatal Maturation of Oocytes During early fetal life, Oogonia proliferate by mitosis and then enlarge to form Primary Oocytes before birth.
Mitosis Vs Meiosis: Comparing the Differences and Similarities between Mitosis and Meiosis You will learn about the similarities and differences between Mitosis and Meiosis in cells as we compare and contrast the two processes of cell division to help you understand. Differences between Mitosis and Meiosis in terms of number of chromosomes … Read more Cell Biology
How do viruses reproduce? Many wonder how viruses get to reproduce especially as they differ from other microbes in microbiology. Viruses, as compared to other microbes depend totally on living cells to be able to function. A virus happens to be the smallest of all microbes and is made up of core genetic material. This genetic material could be RNA or DNA which is surrounded by a protective ...
Mitosis Vs Meiosis: Comparing the Differences and Similarities between Mitosis and Meiosis You will learn about the similarities and differences between Mitosis and Meiosis in cells as we compare and contrast the two processes of cell division to help you understand.
A Centriole can be defined simply as the cylindrical (rod-shaped) organelle that is composed of microtubules and stays next to the nucleus within the centrosome in eukaryotic cells. It is one of the nonmembranous organelles of the animal cell. There are two centrioles within the centrosome. The centriole forms a spindle of microtubules ( a mitotic apparatus for meiosis or mitosis) and is ...
