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What is Meiosis?
Meiosis is a kind of cell division which produces four little girl cells. Every one of these cells comprises of a large portion of the quantity of chromosomes present in the parent cell, as in the creation of gametes and plant spores.
A. Meiosis I:
Here, the sets of homologous chromosomes are isolated and an exceptional cell division happens diminishing the cell from diploid to haploid.
Meiosis I is additionally partitioned into the accompanying stages,
- Prophase I
- Prometaphase I
- Metaphase I
- Anaphase I
- Prophase I:
In Prophase I homologous chromosomes pair and trade DNA and recombinant chromosomes are framed.
Five Phases of Prophase I:
- Prometaphase I:
In prometaphase I development of shaft device happens and chromosomes are connected to axle strands by kinetochores.
- Metaphase I:
Here, the homologous sets of chromosomes are orchestrated in a twofold line along the metaphase plate. These chromosomes are arbitrarily organized along the metaphase plate.
- Anaphase I:
In this stage partition of pair of homologous chromosomes happen and they move to the furthest edges of the cell.
- Telophase I:
In the last phase of meiosis I, chromosomes become diffuse and reconstruction of atomic layer happens.
Here, cells are at long last separated to shape two new cells, trailed by Meiosis II. The Haploid cells (recently shaped) comprise of one duplicate of every chromosome.
B. Meiosis II:
Two chromatids are shaped by isolating every chromosome in Meiosis II.
Note: Meiosis produces Genetic assorted variety.