我们讨论了雄、雌配子的形成。
所谓遗传漂变就是指：在一个有限的种群内，由于配子的随机取样使得遗传组成在种群内发生变化的现象。
Genetic drift is change in the genetic composition of a population arising as a consequence of sampling of gametes in a finite population.
是生物体所有细胞中最终能产生配子的细胞。
Germ cell Any cell in a cell lineage that eventually produces gametes.
生殖细胞：是生物体所有细胞中最终能产生配子的细胞。
Germ cell Any cell in a cell lineage that eventually produces gametes.
观察了大麦雌雄性配子的融合过程及其幼胚的早期发育。
The process of fertilization and early embryogenesis in barley was observed.
雄配子的形成则包括生殖细胞和营养细胞的分化，以及雄配子体的发生。
The formation of male gametes includes germ cell and vegetative cell differentiation and the occurrence of male gametophyte.
对雄、雌配子的形成，雄配子的体外出丝及动合子的形成过程进行了讨论。
We discussed the formation of microgamete and macrogamete and ookinete, exflagellating microgametocyte in the mosquito.
描述对免疫抑制小鼠肠上皮细胞寄生的隐孢子虫滋养体、裂殖体和大配子的超微结构及肠上皮细胞改变的透射电镜观察结果。
The ultrastructure of Cryptosporidium parvum, which parasitized on the surface of the intestine of the immunosuppressed mice, was studied by transmission electron microscopy.
研究小组通过遗传工程改造小鼠使其缺乏TEX11功能，结果发现TEX11功能的缺失导致在配子形成过程中染色体不联会。
The team genetically engineered male mice such that they lacked TEX11 function and found that this caused chromosomal asynapsis during the process of gamete formation.
探讨电视腹腔镜下配子输卵管内植入术(GIFT)的临床应用价值。
To investigate the clinical value of gamete intrafallopian transfer (GIFT) with laparoscopy.
采用二倍体为参照母本研究三倍体花粉配子育性有估测过高的倾向。
It is found that the trend of higher estimates for the gamete fertility was observed if the diploids were used as reference mother parents.
这也解释了满月两天后，为什么飞行员时常看到10公里长的红色珊瑚配子浮游体。
That may explain why pilots often see red, 10-kilometer-long slicks of coral gametes a couple of days after a full moon.
马头山羊产羔数父系和母系配子印迹效应的方差组分占总方差的比率分别为1.1%和2.3%。
For the litter size, estimates of the proportion of total variance accounted for by paternally and maternally transmitted gametes were 1.1% and 2.3% respectively.
当配子在融合之前从亲本体中排出到有水介质时发生体外受精，这是孢子植物的特征。
External fertilization occurs when gametes are expelled into a watery substrate from the parental bodies before fusion; it is typical of spore bearing plants.
如果这种配子体能够产生可育的配子，那么形成的孢子体通常是四倍体，这样就可以得到大量的多倍体。
If such gametophytes produce fertile gametes, the resulting sporophyte is then tetraploid, and large polyploid series may subsequently be developed.
漂浮浒苔的游孢子、配子或配子结合形成的合子均能发育成一株新的藻体。
The spores and gametes could grow to new thalli independently, and the same to motile zygotes.
这项研究工作的主要意义并不在于试图为无法自然孕育下一代的夫妻产生配子。
The main significance of the work is not to attempt to generate gametes for couples who do not produce them naturally.
(异系配合)：亲缘关系较远的生物体产生的配子相互融合。
Exogamy The fusion of gametes produced by organisms that are not closely related.
雌配子体的败育和大量落蕾是宜昌泡桐不结实或少结实的直接原因。
The megagameto-phyte abortion and flowering bud failing were the direct causes for the trees being fruit-less.
同宗配合种类可以产生形态大小明显不同的配子，使之能发生相互融合，因此它们是有效的雌雄同体植物。
Homothallic species may produce distinctly different sizes of gametes that can fuse with each other and are thus effectively hermaphrodite. Compare heterothallism.
二倍体生物：代表生活史中植物体阶段的二倍体生物，其单倍体仅局限于配子体。
Diplont a diploid organism that represents the vegetative stage in life cycles in which haploidy is restricted to the gametes.
硅藻类的营养细胞是二倍体，它是由配子融合直接产生的。
In diatoms the vegetative cells are diploid, and are formed directly by the fusion of gametes.
在大多数情况下，使用一组括号可以定义子模式和捕捉匹配子模式的文本。
Most of the time, you use a set of parentheses to define a subpattern and to capture the text that matches the subpattern.
准备好内部程序环境子例程之后，就可以指定一个简单的关键字匹配子例程
With the internal program environment subroutines in place, we can specify a simple keyword matching subroutine
该不育系具有稳定的遗传特性，是研究木本植物雌配子体发育调控机制的极好材料。
It is an excellent material for mechanism research on the female gametophyte development of woody plants with its steady genetic characteristic of female sterility.
裸子植物的雌配子体简化，但较被子植物体的体积大，不能自养。
The female gametophyte is reduced but larger than in angiosperms; it is not autotrophic.
裸子植物的雌配子体简化，但较被子植物体的体积大，不能自养。
The female gametophyte is reduced but larger than in angiosperms; it is not autotroph ic.
论证了反足细胞胚的性质，初步探讨了胚乳与反足细胞无配子生殖的关系。
The concept of antipodal embryo and the relationship of antipodal apogamy with endosperm are discussed.
人工海水中氮、磷营养盐的缺乏会导致海带配子体形成时间的滞后，并对其雌雄分化产生一定影响。
The deficiency of N or P in artificial seawater would lag the time of gametophyte formation and affect the differentiation ratio of female-male gametes.
人工海水中氮、磷营养盐的缺乏会导致海带配子体形成时间的滞后，并对其雌雄分化产生一定影响。
The deficiency of N or P in artificial seawater would lag the time of gametophyte formation and affect the differentiation ratio of female-male gametes.
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