英语词汇“nucleolus”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

nucleolus

/ˌnjuːklɪˈəʊləs

noun (plural nucleoli /ˌnjuːklɪˈəʊlʌɪ/) Biology

A small dense spherical structure in the nucleus of a cell during interphase.Microscopically, large neoplastic lymphoid cells with prominent nucleoli and frequent mitotic figures occlude small vessel lumina....

As the cells separated their chromosomes, the nucleolus also appeared to segregate asymmetrically between mother and daughter cells, with the majority in the mother.
The tumor cells were arranged in trabecular and solid patterns with nuclear pleomorphism, prominent nucleoli, and scant basophilic cytoplasm.

Derivatives

nucleolar

/ˌnjuːkliːˈəʊlə

/ adjective ...

In addition to nucleolar prominence, multiple nucleoli and nucleolar margination have also been suggested as diagnostic criteria for prostate cancer.
Active transcription of ribosomal DNA is required in all organisms for both nucleolar formation and ribosome biogenesis.
The LTR probe uniformly labels the chromosome arms except at the telomeres, nucleolar organizing regions, and centromeres, where the signal is lacking.

Origin

Mid 19th century: from late Latin, diminutive of Latin nucleus 'inner part, kernel' (see nucleus).

单词	nucleolus
释义	nucleolus /ˌnjuːklɪˈəʊləs / noun (plural nucleoli /ˌnjuːklɪˈəʊlʌɪ/) Biology A small dense spherical structure in the nucleus of a cell during interphase.Microscopically, large neoplastic lymphoid cells with prominent nucleoli and frequent mitotic figures occlude small vessel lumina.... As the cells separated their chromosomes, the nucleolus also appeared to segregate asymmetrically between mother and daughter cells, with the majority in the mother. The tumor cells were arranged in trabecular and solid patterns with nuclear pleomorphism, prominent nucleoli, and scant basophilic cytoplasm. Derivatives nucleolar /ˌnjuːkliːˈəʊlə / adjective ... In addition to nucleolar prominence, multiple nucleoli and nucleolar margination have also been suggested as diagnostic criteria for prostate cancer. Active transcription of ribosomal DNA is required in all organisms for both nucleolar formation and ribosome biogenesis. The LTR probe uniformly labels the chromosome arms except at the telomeres, nucleolar organizing regions, and centromeres, where the signal is lacking. Origin Mid 19th century: from late Latin, diminutive of Latin nucleus 'inner part, kernel' (see nucleus).
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