The main events of meiosis include prophase, metaphase, anaphase and telophase. A cell in meiosis goes through two divisions, meiosis I and meiosis II, in which each division consists of the same stages to produce gametes or sexual reproduction cells.
Tetrads, a connected grouping of chromatids, develop with the breakdown of DNA that occurs in prophase. In metaphase, genetic recombination and spindle formation occurs. During anaphase, the tetrads split apart into two pairs pulling to opposite sides of the cell. In telophase, the nuclear envelope holding the chromosomes forms to create a haploid. The process repeats again, but the two opposite sides with the chromosomes develop a cleavage furrow between the two pairs, and the one cell eventually divides into two cells.Learn More
Skin mitosis is the process by which skin cells divide, creating new skin cells for wound repair and skin renewal. Unlike in other types of cells, mitosis occurs constantly in healthy skin cells, according to NCBI.Full Answer >
As explained by DevBio, nondisjunction is what happens when a pair of chromosomes do not separate properly during meiosis. According to Indiana University-Purdue University Indianapolis (IUPUI), nondisjunction can occur during either anaphase I or anaphase II of meiosis.Full Answer >
As BBC explains, the main purpose of microvilli is to increase the surface area of the small intestine. With larger surface area, nutrients from food are more readily absorbed into the blood.Full Answer >
The mitochondria inside a cell produces ATP, or adenosine triphosphate. Cellular respiration is responsible for ATP production, a process in which ATP production occurs after biochemical energy from nutrients is converted.Full Answer >