🇨🇳Chinese Source WordCode: ZH

染色体交叉

Pronunciation / Transliteration: rǎn sè tǐ jiāo chā

🇬🇧 Direct English Meaning:
Chromosomal crossover/ˌkroʊ.məˌzoʊ.məl ˈkrɑːsˌoʊ.vɚ/
nounCEFR C1 (Advanced)Top #45000 frequency
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🇨🇳 Example Sentence in Chinese:

"染色体交叉是减数分裂过程中的重要现象。"

Comprehensive Definitions & Senses

1 sense
As noun
  1. 1

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

    "Chromosomal crossover is a fundamental mechanism that generates genetic diversity in sexually reproducing organisms."

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Linguistic Origin & Historical Etymology

The term combines 'chromosome', derived from the Ancient Greek 'chroma' (color) and 'soma' (body), coined by Heinrich Waldeyer in 1888, with 'crossover', describing the physical crossing over of chromatids during meiosis. The concept of genetic crossing over was established by Thomas Hunt Morgan and his colleagues in the early 20th century.

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