| 单词 | metaphase |
| 例句 | The meiotic division is arrested in metaphase II. Fertilization triggers completion of the second meiotic division and the result is one ovum and an additional polar body. Fundamentals of Biology 2015-01-01T00:00:00Z Figure 6.4 Animal cell mitosis is divided into five stages—prophase, prometaphase, metaphase, anaphase, and telophase—visualized here by light microscopy with fluorescence. Concepts of Biology 2013-04-25T00:00:00Z During metaphase, the “change phase,” all the chromosomes are aligned in a plane called the metaphase plate, or the equatorial plane, midway between the two poles of the cell. Biology for AP Courses 2022-06-09T00:00:00Z During metaphase of meiosis II, the chromosomes line up in the center of each cell. Miller & Levine Biology 2018-01-01T00:00:00Z What would happen if anaphase proceeded even though the sister chromatids were not properly attached to their respective microtubules and lined up at the metaphase plate? Anatomy and Physiology 2013-06-19T00:00:00Z Somehow, this lengthening of metaphase early in development appears to cause more progenitor cells to be made later, Huttner says. Lab-grown 'minibrains' are revealing what makes humans special 2017-11-09T05:00:00Z In metaphase II, the sister chromatids are maximally condensed and aligned at the center of the cell. Concepts of Biology 2013-04-25T00:00:00Z In plants, a cell plate is formed during cell cytokinesis by Golgi vesicles fusing at the metaphase plate. Biology for AP Courses 2022-06-09T00:00:00Z Mitosis is divided into four phases: prophase, metaphase, anaphase, and telophase. Miller & Levine Biology 2018-01-01T00:00:00Z This stage is referred to as late prophase or “prometaphase” to indicate the transition between prophase and metaphase. Anatomy and Physiology 2013-06-19T00:00:00Z The human cells seemed to invest much more time in the phase of cell division called metaphase. Lab-grown 'minibrains' are revealing what makes humans special 2017-11-09T05:00:00Z A chemical is then applied to the cells to arrest mitosis during metaphase. Concepts of Biology 2013-04-25T00:00:00Z They line up at the midway between the two poles of the cell to form the metaphase plate. Biology for AP Courses 2022-06-09T00:00:00Z During metaphase I of meiosis, paired homologous chromosomes line up across the center of the cell. Miller & Levine Biology 2018-01-01T00:00:00Z A metaphase plate forms between the centrosomes that are now located at either end of the cell. Anatomy and Physiology 2013-06-19T00:00:00Z The oocytes were injected at the metaphase II stage of their cell cycle. Biotechnology: At the heart of gene edits in human embryos : Nature : Nature Research 2017-08-01T04:00:00Z During meiosis, variation in the daughter nuclei is introduced because of crossover in prophase I and random alignment at metaphase I. The cells that are produced by meiosis are genetically unique. Concepts of Biology 2013-04-25T00:00:00Z Which of the following distinguishes metaphase I from metaphase II? Biology for AP Courses 2022-06-09T00:00:00Z The forces that shape the structure of the highly condensed metaphase chromosomes seen during cell division in eukaryotes are still largely unknown. [Report] A Cascade of Histone Modifications Induces Chromatin Condensation in Mitosis 2014-01-02T19:26:32.019Z The metaphase plate is the name for the plane through the center of the spindle on which the sister chromatids are positioned. Anatomy and Physiology 2013-06-19T00:00:00Z The parasite even participates in the equatorial plate that defines metaphase, along with the chromosomes! Theileria gets naked and rides the spindle 2013-07-27T11:45:00.660Z Cell division is again arrested, this time at metaphase II. At ovulation, this secondary oocyte is released and travels toward the uterus through the oviduct. Concepts of Biology 2013-04-25T00:00:00Z The random alignment of homologous chromosomes at the metaphase plate ensures the random destination of the chromosomes in the daughter cells. Biology for AP Courses 2022-06-09T00:00:00Z The secret was to keep the eggs in the phase of their growth cycle called "metaphase," which is when DNA aligns in the middle of the cell before the cell divides. Scientists create human stem cells through cloning 2013-05-15T16:09:22Z Even during mitosis, a crucial stop and go checkpoint in metaphase ensures that the cell is fully prepared to complete cell division. Anatomy and Physiology 2013-06-19T00:00:00Z The metaphase is the parting of the sister chromosomes in the equatorial plate; their passage to opposite poles of the spindle constitutes the anaphase; and their reconstruction to form the resting daughter nuclei, the telophase. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 8 "Cube" to "Daguerre, Louis" 2012-01-31T03:00:17.257Z During metaphase, all of the chromosomes are aligned in a plane called the metaphase plate, or the equatorial plane, midway between the two poles of the cell. Concepts of Biology 2013-04-25T00:00:00Z Because homologous chromosomes dissociate from the spindle fibers during metaphase I, they move randomly to the daughter cells. Biology for AP Courses 2022-06-09T00:00:00Z In figure 94, a spermatogonial metaphase, the small chromosome is shown with 17 larger ones. Studies in Spermatogenesis Part II The metaphase checkpoint ensures that all sister chromatids are properly attached to their respective microtubules and lined up at the metaphase plate before the signal is given to separate them during anaphase. Anatomy and Physiology 2013-06-19T00:00:00Z First maturation spindle in metaphase, chromosomes in single and double diamond shapes. Studies in Spermatogenesis Part I Mitosis consists of five stages: prophase, prometaphase, metaphase, anaphase, and telophase. Concepts of Biology 2013-04-25T00:00:00Z The homologous chromosomes are paired tightly during metaphase I and undergo crossover as the synaptonemal complex forms a lattice around them. Biology for AP Courses 2022-06-09T00:00:00Z At the metaphase stage of mitosis, when the chromosomes are lined up in the center of the cell, the chromosomes are at their most compacted. Concepts of Biology 2013-04-25T00:00:00Z In plant cells, Golgi vesicles coalesce at the former metaphase plate, forming a phragmoplast. Biology for AP Courses 2022-06-09T00:00:00Z Diamond-shaped and contracted cross-shaped tetrads from metaphase of first maturation mitosis, showing linin connections. Studies in Spermatogenesis Part I In metaphase I, these pairs line up at the midway point between the two poles of the cell. Concepts of Biology 2013-04-25T00:00:00Z A chemical called colchicine is then applied to cells to arrest condensed chromosomes in metaphase. Biology for AP Courses 2022-06-09T00:00:00Z Now, repeat step 2 but show the cell at metaphase during mitosis. Biology for AP Courses 2022-06-09T00:00:00Z They line up at the midway point between the two poles of the cell to form the metaphase plate. Biology for AP Courses 2022-06-09T00:00:00Z Figure 4 shows the 52 chromosomes of a spermatogonial division in metaphase. Studies in Spermatogenesis Part I Figure 7.4 To demonstrate random, independent assortment at metaphase I, consider a cell with n = 2. Concepts of Biology 2013-04-25T00:00:00Z At the metaphase stage, the chromosomes are at their most compact, are approximately 700 nm in width, and are found in association with scaffold proteins. Biology for AP Courses 2022-06-09T00:00:00Z They line up at the midway point between the two poles of the cell to form the metaphase plate. Biology for AP Courses 2022-06-09T00:00:00Z They line up at the midway between the two poles of the cell to form the metaphase plate. Biology for AP Courses 2022-06-09T00:00:00Z The tetrads usually remain connected by delicate linin threads, as shown in figures 57 and 60, also in figures 62 and 63, the latter taken from the metaphase of the first maturation spindle. Studies in Spermatogenesis Part I In this case, there are two possible arrangements at the equatorial plane in metaphase I, as shown in the upper cell of each panel. Concepts of Biology 2013-04-25T00:00:00Z A secondary meiotic arrest occurs, this time at the metaphase II stage. Biology for AP Courses 2022-06-09T00:00:00Z Explain how the orientation of homologous chromosomes during metaphase I of meiosis contributes to greater variation in gametes. Biology for AP Courses 2022-06-09T00:00:00Z Recombination of maternal and paternal chromosomes occurs in metaphase I because the homologous chromosomes are not connected at their centromeres. Biology for AP Courses 2022-06-09T00:00:00Z Figure 145 shows the usual appearance of the other chromosomes in metaphase. Studies in Spermatogenesis Part I Explain how the random alignment of homologous chromosomes during metaphase I contributes to variation in gametes produced by meiosis. Concepts of Biology 2013-04-25T00:00:00Z A contractile ring composed of actin filaments forms just inside the plasma membrane at the former metaphase plate. Biology for AP Courses 2022-06-09T00:00:00Z In metaphase I, these pairs line up at the midway point between the two poles of the cell to form the metaphase plate. Biology for AP Courses 2022-06-09T00:00:00Z Because there is an equal chance that a microtubule fiber will encounter a maternally or paternally inherited chromosome, the arrangement of the tetrads at the metaphase plate is random. Biology for AP Courses 2022-06-09T00:00:00Z There are two possibilities for orientation at the metaphase plate; the possible number of alignments therefore equals 2n, where n is the number of chromosomes per set. Biology for AP Courses 2022-06-09T00:00:00Z |
| 随便看 |
|
英语例句辞典收录了117811条英语例句在线翻译词条，基本涵盖了全部常用单词及词组的例句翻译及用法，是英语学习的有利工具。