Khan Academy
Explore the phases of meiosis and genetic diversity through a comprehensive article on Khan Academy, a platform offering free education for all.
Meiosis review (article) | Meiosis | Khan Academy
The purpose of meiosis is to produce gametes, or sex cells. During meiosis, four daughter cells are produced, each of which are haploid (containing half as many chromosomes as the parent cell).
Khan Academy
Mitosis and meiosis are two different types of cell division. Mitosis occurs in somatic cells and results in two identical daughter cells with a diploid (2n) number of chromosomes. This process is essential for growth and repair in the body.
Khan Academy
If you're seeing this message, it means we're having trouble loading external resources on our website. If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.
Phases of meiosis II - Khan Academy
Meiosis II is a process that helps cells divide and create gametes, which are needed for sexual reproduction. It starts with prophase II, where the nuclear envelope dissolves and chromosomes condense. Then, in metaphase II, chromosomes line up along the cell's middle.
Chromosomal crossover in meiosis I - Khan Academy
Meiosis is a process where germ cells divide to produce gametes, such as sperm and egg cells. In prophase I of meiosis, chromosomes condense and homologous recombination takes place, leading to genetic variation through chromosomal crossover. This forms a tetrad, which is made up of four chromatids (two sister chromatids per chromosome).
Phases of the cell cycle - Khan Academy
The cell cycle is composed of interphase (G₁, S, and G₂ phases), followed by the mitotic phase (mitosis and cytokinesis), and G₀ phase.
Comparing mitosis and meiosis - Khan Academy
Mitosis and meiosis are two different types of cell division. Mitosis occurs in somatic cells and results in two identical daughter cells with a diploid (2n) number of chromosomes. This process is essential for growth and repair in the body.
Khan Academy
Mitosis, a key part of the cell cycle, involves a series of stages (prophase, metaphase, anaphase, and telophase) that facilitate cell division and genetic information transmission. Centrosomes and microtubules play pivotal roles in orchestrating this complex process, ensuring the successful replication of cells.
Chromosomes (article) | Cell cycle | Khan Academy
Aside from small regions of similarity needed during meiosis, or sex cell production, the X and Y chromosomes are different and carry different genes. The 44 non-sex chromosomes in humans are called autosomes .