prophase I
[/ˈproʊfeɪz wʌn/]
nounpl: prophases I
prófase I
1. The first stage of meiosis I in which homologous chromosomes pair up (synapsis) and crossing over occurs, followed by the breakdown of the nuclear envelope
During prophase I, bivalents are formed when homologous chromosomes synapse together.
Durante a prófase I, bivalentes são formados quando os cromossomos homólogos se sinapsam juntos.
2. The prolonged prophase stage of the first meiotic division, characterized by complex chromosome behavior including leptotene, zygotene, pachytene, diplotene, and diakinesis substages
Prophase I is the longest phase of meiosis I and involves multiple substages.
A prófase I é a fase mais longa da meiose I e envolve múltiplos estágios.
Prophase I is a fundamental concept in biology education worldwide. The term is used identically in both Brazilian Portuguese and European Portuguese scientific contexts. It is typically taught in high school and university biology courses as part of understanding sexual reproduction and genetic variation. The concept is culturally neutral and universally recognized in scientific communities across English and Portuguese-speaking countries.
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