PACHYNSIS Meaning and
Definition
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Pachynsis is a term used in genetics and cytology to describe a stage in cell division known as meiosis. Meiosis is a specialized form of cell division that occurs in sexually reproducing organisms to produce gametes, such as sperm and eggs. It consists of two successive nuclear divisions, resulting in the formation of four non-identical haploid cells.
During pachynsis, which is the third stage of meiosis, chromosomes condense and become visible under a microscope. This is when each chromosome pairs with its homologous partner, a process known as synapsis. The paired chromosomes then undergo a process called crossing over or recombination. This is a crucial step where sections of genetic material between the homologous chromosomes are exchanged. Crossing over contributes to genetic diversity by shuffling and mixing genetic information.
Pachynsis is considered a critical stage in meiosis because it ensures the proper distribution of genetic material to the subsequent cell divisions. The accurate separation of chromosomes and recombination are essential for producing haploid cells with unique genetic combinations. Any errors during pachynsis can lead to abnormalities in the number or structure of chromosomes, resulting in genetic disorders or infertility.
In conclusion, pachynsis is a stage in meiosis where chromosomes condense and form pairs, undergo crossing over, and ultimately contribute to the production of genetically diverse haploid cells in sexually reproducing organisms.
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Any pathological thickening.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for PACHYNSIS
- oachynsis
- lachynsis
- -achynsis
- 0achynsis
- pzchynsis
- pschynsis
- pwchynsis
- pqchynsis
- paxhynsis
- pavhynsis
- pafhynsis
- padhynsis
- pacgynsis
- pacbynsis
- pacnynsis
- pacjynsis
- pacuynsis
- pacyynsis
- pachtnsis
- pachgnsis
