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diploid adj.1.二重的;兩數的,二倍的。2.二倍體的。n.1...

diploma

It was found recently that in the gynogenetic haploid and diploid embryos of goldfish , which have exactly the same genome , the haploid condition results in obstruction of gene expression and abnormal development while the diploid embryos have normal gene expression and development 在具有相同基因組的金魚雌核發育單倍體和二倍體胚胎發育過程中,單倍體本身的條件導致了它在基因表達上有缺陷,發育不正常,而二倍體發育正常。

The hatching rate of the gynogens with the cold shock was higher than that of the untreated gynogens . all the gyngens with and without cold shock were examined to be diploid females with 100 chromosomes , providing the evidence that the females of the tetraploid population are homogamety ( xxx ) 冷休克處理和未冷休克處理的雌核發育魚均是二倍體( 2n = 100 )的雌魚,這證明了異源四倍體螂鯉是雌性的性別決定類型屬于xxxx類型。

Stoma of polyploids ( include hexaploid and octoploid ) were larger and spaced father apart on the undersurface than diploids , the stoma density of triploids and tetraploids were 60 - 70 % of corresponding diploids , and the stoma density of hexaploids and octoploids were 30 - 40 % of diploids 73為三倍體和四倍體區別于二倍體共有的特征帶; itrai 70為四倍體的特征帶。 sod同工酶酶活性較弱,共分離6條帶, ro

The mature females were only found among the two - year old gynogens , not being found among the one - year old gynogens , indicating that the ovary in the gynogens developed slowlier than that in the normal diploids such as the red crucian carp 二倍體雌核發育魚的性成熟比普通的二倍體鯉、魚即魚的性成熟得晚,在一齡的雌核發育魚沒有發現達到性成熟的個體,只有到二齡時,才發行性成熟魚。

This paper presents a single - locus tetra - allelic binary genetic algorithm based on the concept of dominant and recessive genes , which is named full dominance - recessive diploid ga . this ga features separating dominant one - zero with recessive one - zero 基于生物進化遺傳理論中有顯性、隱性遺傳因子的理念,本文提出了一種采用單點四進制編碼的遺傳算法,即完全顯隱性二倍體遺傳算法。

With our product economics ’ stain development , market competition is daily hot , the enterprise must find new profit raising point though enlarge the diploid of the science research if it want to be leader and hold strongly competition step 隨著我國商品經濟的不斷發展,市場競爭日趨激烈,企業要想成為領先者并保持強勢的競爭地位,必須加大科研開發力度來尋找新的利潤增長點。

Haploid organisms have one genome , diploid organisms have two homologous sets , polyploid organisms have many sets sometimes form the same ancestor ( autopolyploids ) and sometimes from different ancestor ( allopolyploids ) 單倍體生物有一個基因組;二倍體生物有兩個同源的基因組;多倍體生物有多個基因組,它們可能源于同一祖先(同源多倍體) ,也可源自不同的祖先(異源多倍體) 。

Apoptin ( vp , ) can selectively induce apoptosis in human transformed and malignant cells but not in normal diploid cells . apoptin induces a p53 - independent , bcl - 2 - insensitive type of apoptosis in various human tumor cells 其中, vp _ 3蛋白質是雞貧血病毒的致病因子,能選擇性的誘導腫瘤細胞和轉化細胞發生凋亡,但對人和鼠的正常二倍體細胞無影響,稱為凋亡素( apoptin ) 。

In organisms showing alternation of generations , the gametes may be produced by mitosis in the haploid generation , or by meiosis in the diploid generation and give rise directly to gametes or gamete - producing cells 在表現出明顯世代交替的生物體中,配子可能是由單倍體世代發生有絲分裂產生,亦可由二倍體世代減數分裂直接產生配子體或配子母細胞。

Anther culture ( pollen culture ) the generation of haploid plants from immature pollen grains or intact excised anthers . the resultant plants are generally smaller than their diploid counterparts 花藥培養:從未成熟的花粉粒或者切下的完整的花藥中再生出單倍體植株的過程。這樣培養出來的單倍體植株通常比正常培養出的二倍體植株小。

Indeed , groups of homozygous diploid mitogynogenetic fry of grass carp , which is very important for both the theoretical and practical research of genetic breeding , have been produced with this techniques based on the parameters 并得到了在遺傳育種理論研究和生產應用上均有重要價值的基因純合型的雌核發育草魚。

The bmn cells are multiploidy and heteroploidy so highly that in which the diploid was few and far between , and multiploid was so much that came to 90 % . even there were 533 chromosomes in one cell Bmn細胞是高度異倍化、高度多倍化的細胞系,其典型二倍體極少而高多倍化群達90 ,最多的染色體一群在500條以上。

The variance of seed setting density and 1000 - seed weight of the different diploid seed plants is highly significant , but it is not significant in the different source of the same line 不同品系的二倍體種株材料在結實密度和千粒重之間的差異性也分別達到0 . 01的極顯著水平,但同一材料的不同母根之間差異性是不顯著的。

The variance of the pollen of 12 lines is highly significant ( = 0 . 01 ) and the variance of the different source mother root in the same diploid line is significant ( = 0 . 05 ) . the pollen of e type is bigger than the er type 從品系類型來看,豐產型材料的花粉粒直徑稍大些,而兩份抗叢根病材料的花粉粒直徑較小。

In this diploid background , the discussion on how to enhance the power of competition of chinese industry and company must consider the trend happened in international industry 在這樣一個國際國內雙重背景下,關于如何提升我國產業和企業國際競爭力的討論,也就必須要考慮到國際產業界發生的這一趨勢。

It was shown that hairy root of autotetraploid indigoblue woad was better than that of diploid indigoblue woad . 2 establishment and optimization of regenerating plantlet system from hairy roots 2建立并優化了毛狀根植株再生體系通過三種途徑可獲得毛狀根再生植株。

3 . the androgenesis of a ilotetraploid hybrids in 2002 , the goldfish “ s female nucleus were inacted by using uv rays to irradiate the eggs , the diploid s 2003年用失活的墨龍的卵子與四被體魚的二倍體精子“受精” ,獲得了82尾雄核發育實驗魚。

The pollen grain germinates on a special extension of the carpel , the stigma , and double fertilization results in a diploid zygote and triploid ( usually ) endosperm nucleus 花粉粒在柱頭上萌發,雙受精導致雙倍體的合子和三倍體的胚乳形成。

The second meiotic division thus gives rise to two cells with the diploid number of chromosomes , one of which divides parthogenetically to form an cmbryo 在第二次減數分裂中上升為兩個細胞包含雙倍體的染色體數目,其中的一個分裂形成胚胎。