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haploid adj.【生物學】單元體的,單倍體的。n.單倍體。adj...

haplology

Embryological studies reveal that megaspore and such cells as egg , synergid and antipodals in mature embryo sac initiate the division of forming haploid plants through embryogenesis or callus formation 胚胎學觀察揭示大孢子與胚囊內的卵細胞、助細胞和反足細胞均有可能在培養中啟動分裂,通過胚狀體或愈傷組織形成單倍體植株。

Polyploidy is far more common in plants than in animals and very high chromosome number may be found ; for example in octaploids and decaploids ( containing eight and ten times the haploid chromosome number ) 多倍體現象在植物中比在動物中更為普遍,且染色體組數量較大,如八倍體和十倍體(即含有八倍或十倍的單倍染色體數目) 。

In bryophytes ( mosses , liverworts and horworts ) the haploid gametophyte is the dominant phase of the life cycle and the sporophyte is represented only by the capsule , seta , and foot 在苔蘚類植物中(苔蘚,地錢,金魚藻)單倍的配子體占生活史的主要部分,孢子體包括孢蒴、蒴柄和基足。

By means of pcr amplification to total dna extracted from four transgenic plants , it indicated that bet - a gene had been integrated into the haploid of the hybrid genome 最終得到四個轉化株系,經pcr檢測,全部產生特異性擴增譜帶,證明bet - a基因已整合進小黑楊單倍體植株的基因組中。

Antipodal cells the three haploid cells found in the embryo sac of seed - bearing plants that migrate to the chalaxal end of the sac farthest from the micropyle 反足細胞:胚囊三次分裂形成卵細胞,助細胞和極核等,其中位于合點端的三個單倍體細胞稱反足細胞。

For example , if the haploid number is 7 , the euploid number would be 7 , 14 , 21 , 28 , etc , and there would be equal numbers of each different chromosome 例如,一種生物單倍體染色體數目是7 ,整倍數將是7 、 14 、 21 、 28等數目,并且每條不同的染色體有相等的數目。

Synapsis ( pairing ) the association of homologous chromosomes during the prophase stage of meiosis that leads to the production of a haploid number of bivalents 聯會(配對) :能產生單倍二價體的減數分裂前期,同源染色體的聯合現象。

In this paper , several factors affecting transformation of the haploid such as ph etc . were studied , and the tissue culture system was o ptimized 實驗中對小黑楊單倍體組培系統進行了優化,并探討了影響轉化率的幾個因素如ph值等。

Euploidy the normal state in which an organism ' s chromosome number is an exact multiple of the haploid number characteristic of the species 整倍性:正常狀態下,生物體染色體數是此種生物單倍體數目整數倍的現象被稱為整倍性。

The haploid plant produces gametes mitotically and is thus termed the gametophytes while the diploid plant produces spores meiotically and is called the sporophyte 單倍體植物有絲分裂產生配子體,二倍體減數分裂產生孢子體。

Pollen mother cell ( pmc ) in angiosperms and gymnosperms , a somatic cell that gives rise to four haploid pollen grains by meiosis 花粉母細胞( pmc ) :指在被子植物和裸子植物中,能通過減數分裂產生4個單倍體花粉粒的體細胞。

Generally meiosis occurs before gamete formation , resulting in the gametes being haploid ( having half the normal number of chromosomes ) 在配子形成前通常會發生減數分裂,產生單倍體的配子(染色體數為正常的一半) 。

Haplont a haploid organism that represents the vegetative stage in life cycles in which diploidy is restricted to the zygote 單倍性生物:是一個單倍體或生物體,該生物體體現二倍性僅限于合子的生活史中的營養階段。

The establishment of anther and microspore system promoted haploid breeding and speeded up the process of crop breeding 花藥、小孢子體系的建立,促進了單倍體育種的進行,加速了作物育種進程。

With haploid as transgenic material can decrease mosaic and can avoid properties separation in transforming 采用單倍體植株作為遺傳轉化的材料會避免轉基因過程中的嵌合體問題和子代分離問題。

Gynogenic haploids through unfertilized ovules and ovaries have been reported from 21 species in 9 families since 1976 摘要介紹被子植物未受精胚珠與子房離體培養誘導單倍體植株的研究進展。

In mammals , each sperm has the haploid set of chromosomes and each egg has another haploid set 對于哺乳動物來說,每個精細胞都攜帶著構成后代的一半染色體(單倍體》 ,卵細胞則攜帶另外一半。

Ascospore one of ( usually ) eight haploid spores produced inside an ascus by members of the phylum ascomycota 子囊孢子:在子囊菌中,子囊內進行減數分裂產生的孢子,通常是8個。

On germination , the zygospore undergoes meiosis to produce haploid cells that give rise to a new thallus 在萌發期,接合孢子經歷減數分裂形成單倍體細胞再產生新的植物體。