meiosis造句
31. During the meiosis of microspore mother cells, the amount of starches apparently increased in parenchyma around vascular bundle but there were no starches in tapetal and middle layer cells.
32. BOULE protein, a new member of DAZ family, is found in 2001, and is the key regulation factor in meiosis of human spermatogenesis.
33. Doubling of chromosomes improved the meiosis obviously, but tetraploid hybrid was still acarpous which may be related to the nucleo-cytoplasmic incompatibility.
34. The male pronucleus forms when the second meiosis is completed.
35. Cytokinesis The division of the cytoplasm after nuclear division ( mitosis or meiosis ).
36. C412S in normal PMC meiosis, however, showed a peak pollen abortion at later mononucleate stage of microsporogenesis , which mostly belonged to spherical abortion type.
37. Mammalian Spermatogenesis is a unique cell differentiation process and can be divided into three stages: mitosis, meiosis, and spermiogenesis .
38. At the stage of meiosis prophase, microspore mother cell begin to accumulate callose wall.
39. The idiogram of SC karyotyping of Eri Silkworm by 9 nuclei is made and the meiosis stage of Eri silkworm is discussed in the present paper.
40. The karyotype of Nelumbo nucifera during meiosis zygotene was established in this study, which would help the studies of meiosis and molecular cytogenetics in lotus.
41. Meiosis, which occurs only in the formation of gametes, is a specialized form of cell division.
42. Spindle The spindle-shaped structure formed in the cytoplasm during MITOSIS and MEIOSIS that is responsible for moving the chromatids and chromosomes to opposite poles of the cell.
43. Furthermore, the other features of Horner's syndrome ( meiosis and anhidrosis ) are not described.
44. Ubisch bodies and lipid bodies are found in the glandular tapetums. In meiosis of microsporocyte, cytokinesis is is a simultaneous type, which produces an isobilateral tetrad.
45. Chiasma (pl. chiasmata) A connection between homologous chromosomes seen during the prophase stage of meiosis.
46. The heterozygote genotypes in F2 population in this type of species are different from those in general species in which the genetic recombination occurs in meiosis of both male and female.
47. When the tapetum disintegrates gradually later, microspore mother cell has still not entered meiosis, finally disintegrated.
48. The stage of mitosis and meiosis in which the chromosomes nuclear spindle.
49. The meiosis abnormalities phenomenon in Dendranthema and some of their hybrids were observed, and the formation mechanism also the role which played in the process of phylogenesis were analyzed.
50. Cycling meiosis and fertilization events produces a series of transitions between alternating haploid and diploid states.
51. Apospory, aposporous The development of a gametophyte directly from a sporophyte without the occurrence of meiosis or spore formation.
52. It was concluded that meiosis did not happen during the most process of gametogenesis in gynogenetic silver crucian carp eggs, even when they were stimulated by homologous sperms.
53. In addition, correlations between the meiosis and callose deposition in the wall of megasporocyte have been discussed.
54. The archesporial cells differentiated from single archesporium , the meiosis of microspore mother cells were continuous type and tetrads were tetrahedral.
55. Meiosis comprises a pair of specialized nuclear divisions that produce haploid germ cells.
56. Centromere The region of the chromosome that contains the kinetochore, the structure that becomes attached to the nuclear spindle during mitosis and meiosis.
57. Spore mother cell A cell that gives rise to four haploid spores by meiosis.
58. The stability of meiosis seed-set rate and plumpness of kernels might be changed when the cytoplasm of a triticale was changed.
59. The microspore mother cells give rise to isobilateral tetrads by meiosis. Cytokinesis is successive. The mature pollen grains are 2-celled and are shed singly.
60. The results were as follows:the meiosis in pollen mother cells of radish simultaneous cytokinesis and chromosomes could be identified as rod or ring bivalents in diakinesis except for 3% abnormal.
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