1, Diploidy is restored when two haploid gametes fuse.

2, Reduced to just the haploid maternal complement of chromosomes, the egg develops into a male.

3, Thus, whereas spermatocytes produce four functional haploid spermatozoa, primary oocytes eventually produce one functional haploid egg plus two polar bodies.

4, Haploid variety breeding and application in anther culture breeding.

5, Mononucleated haploid cells join to produce binucleate cells.

6, Embryo has most commonly eitht genetically identical haploid nuclei.

7, At fertilization, when the haploid gametes fuse, the diploid number of chromosomes is restored.

8, Here we describe haploid mouse embryonic stem cells and show their application in forward genetic screening.

9, The haploid breeding of maize is a technology that using anther culture or gynogenesis to produce haploid, and then obtain stable new varieties through natural or artificial doubling.

10, These are the haploid sexual spores that were produced following meiosis inside the basidium .

11, Potato haploid induction has significant meaning in potato breeding, It includes parthenogenesis and anther culture methods.

12, On germination, the zygospore undergoes meiosis to produce haploid cells that give rise to a new thallus.

13, Generative cell One of the haploid cells in the POLLEN TUBE of seed plants.

14, Club-shaped basidia, each bearing four haploid basidiospores, line the surfaces of the gills on the underside of the mushroom cap.

15, The chromosome doubling of haploid and double haploid in cucumber was studied.

16, A yeast haploid S1(a) with high intracellular content of reduced glutathione (GSH) was selected from 75 yeast strains by primary screening and isolation of haploid, and then marked with auxotroph.

17, 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.

18, Polar nuclei The, usually two, haploid nuclei found midway along the EMBRYOSAC, forming a binucleate central cell. They may fuse to form the diploid definitive nucleus.

19, The haploid pollen cells develop in the tapetal zone from spore mother cells.

20, Synergid cells Two haploid cells located near the egg cell at the micropylar end of the embryo sac in flowering plants.

21, Haplont A haploid organism that represents the vegetative stage in life cycles in which diploidy is restricted to the zygote.

22, An exact multiple of the haploid number is called euploid.

23, Using young panicle of a haploid rice SAR explant,(http:///haploid.html) a tissue culture assay was carried out.

24, Haploid development in zebrafish has been applied for genetic screening.

25, It is certain, however, that both higher animals and higher plants are diploid, with only brief haploid interludes.

26, Prototrophic hybrids have been obtained by the protoplast fusion between auxotrophic haploid and diploid mutants of Saccharomyces cerevisiae.

27, In lower plants such as mosses and liverworts the persistent vegetative plant is haploid, the sporophyte being a relatively short-lived phase.

28, Zygotene is characterized by the active and specific pairing( synapsis ) of homologous chromosomes leading to the formation of a haploid number of bivalents.

29, Finally, in the sporic life cycle, the living organism alternates between haploid and diploid states.

30, Aneuploid describes chromosome numbers which are not multiples of the haploid number ( n ).

31, At the same time, the information of flax biotechnology of anther culture, haploid breeding, utilization of somatic mutation, protoplasmic culture, gene transformation were introduced in detail.

32, Cycling meiosis and fertilization events produces a series of transitions between alternating haploid and diploid states.

33, Euploidy The normal state in which an organism's chromosome number is an exact multiple of the haploid number characteristic of the species.

34, Spermatocytes produced by mitosis in spermatogonia divide meiotically to generate haploid spermatids.

35, Isolated Microspore culture is one of the Methods : To obtain haploid.

36, Meiosis comprises a pair of specialized nuclear divisions that produce haploid germ cells.

37, Spore mother cell A cell that gives rise to four haploid spores by meiosis.

38, Such a dikaryon cannot apparently exist independently of the haploid phase.

39, The haploid complement consisted of 11 metacentric chromosomes and 1 submetacentric chromosome.

40, Reduction division --- The first meiotic division, so called because at this stage the chromosome number per cell is reduced from diploid to haploid.

41, The haploid plant produces gametes mitotically and is thus termed the gametophytes while the diploid plant produces spores meiotically and is called the sporophyte .

42, Haploid embryos which only with chromosome of female parent were obtained due to the chromosome elimination of pollen parent quickly and completely during the heterozygote development.

43, For example, in the unicellular chlamydomonas the vegetative cell is haploid, and the only diploid cells are the zygospores, which germinate to produce haploid zoospores.

44, Haplobiontic Describing life cycles in which only one type of somatic body is formed, which may be either haploid or diploid, i. e. either the sporophyte or the gametophyte generation is missing.

45, The fungus is unicellular and exists in both haploid and diploid phases.

46, Haploid breeding is a method of doubling the spontaneous or artifical haploid with colchicum, and selecting the super doubled lines.

47, Synapsis (pairing) The association of homologous chromosomes during the prophase stage of meiosis that leads to the production of a haploid number of bivalents.

48, Diplobiontic Describing life cycles showing a typical alternation of generations with haploid and diploid somatic bodies.

49, On the basis of the experiment, the first new variety of Avena Nuda Huazhong 21 in the world is bred by using anther haploid breeding technique.

50, Research advances of haploid breeding of cucumber(Cucumis sativus L. ) were reviewed in the paper, including anther culture, ovary culture and induction of haploid obtained by irradiated pollen.

51, A gamete containing a diploid number of chromosomes, rather than the usual haploid number.

52, The capsule and operculum are in turn sheathed by a haploid calyptra which is the remains of the archegonial venter.

52, is a sentence dictionary, on which you can find excellent sentences for a large number of words.

53, Haploid - Having only one set of chromosomes, usually by meiosis, or resulting from an unfertilized eggs.

54, Haplodiploid - A reproductive system in which females are diploid and males result from unfertilized, haploid eggs.

55, Anther culture has enhanced the capacity to generate large numbers of haploid plants.

56, Autotetraploid An autopolyploid that has four times the haploid number of chromosomes.

57, We review the advances in haploid breeding of cucurbit crops in the article. We covered the aspects of anther culture, ovary culture and haploid induction via irradiated pollen in the review.

58, Haploid plantlet and callus were induced from the anther culture of Dioscorea zingiberensis as the explant at the stag of later uninucleate period.

59, A haploid organism that represents the vegetative stage in life cycles in which diploidy is restricted to the zygote.