meiosis是什么意思

meiosis

英 [ma?'??s?s] 美 [ma?'os?s]

meiosis 細胞的減數(shù)分裂

來自希臘語meion,減少，來自PIE*mei,小的，少的，詞源同minute,minus,diminish.-osis,狀態(tài)名詞后綴。用于指細胞的減數(shù)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.: 僅僅發(fā)生在配子形成中的減數(shù)分裂是一種特殊形式的有絲分裂.

2. The stage of mitosis and meiosis in which the chromosomes nuclear spindle.: 在有絲分裂及減數(shù)分裂時染色體沿紡錘體排列.

3. Meiosis of microspore mother cells is synchronous or unsynchronous.: 小孢子母細胞減數(shù)分裂同步或不同步.

4. Secondary oocyte immediately into the 2 nd meiosis, and stop at the metaphase.: 次級卵母細胞隨即進入第2次減數(shù)分裂, 停止在分裂中期.

5. The failure of any process in meiosis can result in chromosome mal - disjunction.: 這個過程中,任何一個環(huán)節(jié)的錯誤都可能會導致染色體的異常分離.