meiotic arrest
[maɪˈɒtɪk əˈrɛst]
nounpl: meiotic arrests
parada meiótica
1. A temporary or permanent halt in the process of meiosis, the specialized cell division that produces gametes (sperm and egg cells) with half the chromosome number of the parent cell.
The oocyte undergoes meiotic arrest at prophase I until ovulation occurs.
O oócito sofre parada meiótica em profase I até a ovulação ocorrer.
2. A biological mechanism where cells are prevented from completing meiotic division, often occurring at specific checkpoints during gametogenesis.
Meiotic arrest is commonly observed in female mammals, where oocytes remain arrested in the first meiotic division.
A parada meiótica é comumente observada em mamíferos fêmeas, onde os oócitos permanecem presos na primeira divisão meiótica.
This is a specialized scientific term used primarily in reproductive biology, gynecology, and embryology contexts. It is particularly important in understanding female fertility, egg development, and assisted reproductive technologies (ART) such as in vitro fertilization (IVF). The term is standardized across Portuguese-speaking medical and scientific communities and is essential in academic and clinical discussions about reproduction.
Related Idioms & Phrases
metaphase II arrest - the most common form in oocytes
prophase I arrest - occurring before the first meiotic division is complete
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