西瓜单词

meiosis是什么意思

meiosis

英 [maɪ'əʊsɪs] 美 [maɪ'osɪs]

meiosis 细胞的减数分裂

来自希腊语meion,减少，来自PIE*mei,小的，少的，词源同minute,minus,diminish.-osis,状态名词后缀。用于指细胞的减数分裂。

meiosis (n.): "division of a cell nucleus," 1905, from Greek meiosis "a lessening," from meioun "to lessen," from meion "less," from PIE root *mei- (2) "small" (see minus).

Earlier (1580s) it was a rhetorical term, a figure of speech "weak or negative expression used for a positive and forcible one, so that it may be made all the more emphatic," as when one says "not bad" meaning "very good" or "don't mind if I do" meaning "I really would like to," or this example from "Mark Twain":
"YOUNG AUTHOR." -- Yes Agassiz does recommend authors to eat fish, because the phosphorus in it makes brains. So far you are correct. But I cannot help you to a decision about the amount you need to eat,--at least, not with certainty. If the specimen composition you send is about your fair usual average, I should judge that perhaps a couple of whales would be all you would want for the present. Not the largest kind, but simply good, middling-sized whales.
Related: meiotic; meiotically.

1. Meiosis, which occurs only in the formation of gametes, is a specialized form of cell division.

仅仅发生在配子形成中的减数分裂是一种特殊形式的有丝分裂.

来自辞典例句

2. The stage of mitosis and meiosis in which the chromosomes nuclear spindle.: 在有丝分裂及减数分裂时染色体沿纺锤体排列.

3. Meiosis of microspore mother cells is synchronous or unsynchronous.: 小孢子母细胞减数分裂同步或不同步.

4. Secondary oocyte immediately into the 2 nd meiosis, and stop at the metaphase.: 次级卵母细胞随即进入第2次减数分裂, 停止在分裂中期.

5. The failure of any process in meiosis can result in chromosome mal - disjunction.: 这个过程中,任何一个环节的错误都可能会导致染色体的异常分离.