🇵🇹Portuguese Source WordCode: PT

crossing-over

Pronunciation / Transliteration: kɾɔˈsiŋ ˈo.vɛʁ

🇬🇧 Direct English Meaning:
Crossing over/ˈkrɒs.ɪŋ ˈəʊ.və/
nounverbCEFR B2 (Upper)Top #4500 frequency
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🇵🇹 Example Sentence in Portuguese:

"O crossing-over ocorre na prófase I da meiose."

Comprehensive Definitions & Senses

2 senses
As noun
  1. 1

    The exchange of genetic material between non-sister chromatids of homologous chromosomes during meiosis, resulting in new combinations of alleles.

    "Crossing-over is a fundamental mechanism that increases genetic diversity in sexually reproducing organisms."
  2. 2

    The transition or movement from one side, category, or state to another.

    "The successful crossing-over of ideas between scientific disciplines led to an innovative breakthrough."

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Linguistic Origin & Historical Etymology

Derived from the verb phrase 'cross over', combining Middle English 'crossen' (from Old Norse or Old French, ultimately from Latin 'crux') and Old English 'ofer' (meaning across or beyond). The biological and technical noun senses emerged in the early 20th century.

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