meiosis

音標發(fā)音

For decades, conventional wisdom stated that the X chromosome had little to do with meiosis or infertility because the X chromosome is silenced during male meiosis.
幾十年來，傳統(tǒng)的理論認為X染色體與減數分裂以及男性不育無關，因為在男性減數分裂過程中X染色體被沉默掉了。
In all plants, and in many protists, meiosis results in the formation of haploid cells that can divide vegetatively without undergoing fertilization, referred to as spores.
在所有的植物和許多原生生物中，減數分裂形成單倍體的細胞，這些細胞不經過受精就分裂生長，這就是孢子。
Over four to six weeks, these cells developed and were prompted to undergo the process of "meiosis", which halved the number of chromosomes they carried - a hallmark of sperm.
四到六周之后，這些干細胞培育成熟，刺激它們進入“成熟”過程，所附的作為精子標志的染色體數量將在此過程中減半。

This should allow them to work out which of those genes are involved in suppressing meiosis.
ECONOMIST: Genetic engineering
Abolish meiosis and a plant may be able to produce viable seeds without having them fertilised.
ECONOMIST: Genetic engineering
And it may be possible to engineer a genetic switch, known as an inducible promoter, into the crop, along with the anti-meiosis genes.
ECONOMIST: Genetic engineering: No sex, please, we’re plants

the type of cell division that happens as part of reproduction (= the process of producing young animals or plants), in which one cell divides into four gametes (= reproductive cells), each with a different mixture of chromosomes and half the number contained in the original cell

a type of cell division in which a nucleus divides into four daughter nuclei, each containing half the chromosome number of the parent nucleus: occurs in all sexually reproducing organisms in which haploid gametes or spores are produced &rarrcompare mitosis

減數分裂
Meiosis and segregation in each individual can be directly and efficiently analyzed using RAPD markers.
各親本的染色體減數分裂狀況通過RAPD標記的變化就可以直接體現出來。
雜種pmc

減數分裂
Cytokinesis following meiosis was simultaneous, and tetrad was tetrahedral.
減數分裂中的胞質分裂為同時型，四分體為四面體型。
成熟分裂
減數破裂