| 单词 | meiotic |
| 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 However, the meiotic division is arrested in its progress in the first prophase stage. Concepts of Biology 2013-04-25T00:00:00Z In humans, an evolutionary force called meiotic drive plays a role in early embryo loss. Most human embryos naturally die after conception 2022-09-05T04:00:00Z However, the starting nucleus is always diploid and the nuclei that result at the end of a meiotic cell division are haploid. Biology for AP Courses 2022-06-09T00:00:00Z A diploid cell that enters meiosis with eight chromosomes will pass through two meiotic divisions to produce four haploid daughter cells, each with four chromosomes. Miller & Levine Biology 2018-01-01T00:00:00Z This second meiotic division results in a total of four cells with only half of the number of chromosomes. Anatomy and Physiology 2013-06-19T00:00:00Z This results in a primary oocyte finishing the first meiotic division. Concepts of Biology 2013-04-25T00:00:00Z This may allow humans and other mammals to tolerate meiotic drive over evolutionary time. Most human embryos naturally die after conception 2022-09-05T04:00:00Z Thus, meiosis I is the first round of meiotic division and consists of prophase I, prometaphase I, and so on. Biology for AP Courses 2022-06-09T00:00:00Z The frequency of meiotic double-strand breaks correlates with the number of chromatid structures called ‘loop–axis units’. How sex chromosomes break up to get together 2020-05-26T04:00:00Z A sperm cytoskeletal protein that signals oocyte meiotic maturation and ovulation. A lysosomal switch triggers proteostasis renewal in the immortal C. elegans germ lineage 2017-11-21T05:00:00Z Meiosis II, in which the second round of meiotic division takes place in a way that is similar to mitosis, includes prophase II, prometaphase II, and so on. Concepts of Biology 2013-04-25T00:00:00Z One possible explanation is that the DNA repair response is different in germ cell meiotic M phase compared to mitotic M phase in cultured cells. Correction of a pathogenic gene mutation in human embryos : Nature : Nature Research 2017-08-01T04:00:00Z This prepares the cell to enter prophase I, the first meiotic phase. Biology for AP Courses 2022-06-09T00:00:00Z To test this, they investigated chromosome structure and break frequency in the meiotic precursors of eggs, oocytes. How sex chromosomes break up to get together 2020-05-26T04:00:00Z Their large genomes are characterized by a high content of repetitive elements and large pericentromeric regions that are virtually devoid of meiotic recombination. A chromosome conformation capture ordered sequence of the barley genome : Nature : Nature Research 2017-04-25T04:00:00Z This prepares the cell for the first meiotic phase. Concepts of Biology 2013-04-25T00:00:00Z Taken together, Page argues that this is evidence that the genes are involved in meiotic drive, a somewhat mysterious biological process that subverts the standard rules of heredity. A battle of the sexes is waged in the genes 2015-06-25T04:00:00Z At the end of the first meiotic division, a haploid cell is produced called a secondary spermatocyte. Biology for AP Courses 2022-06-09T00:00:00Z Deletion of Chk2 restored fertility to females that would otherwise be sterile because of a meiotic recombination mutation or radiation exposure. [Report] Reversal of Female Infertility by Chk2 Ablation Reveals the Oocyte DNA Damage Checkpoint Pathway 2014-01-30T19:26:12.333Z The distal zone 1 was characterized by an enrichment of low-copy regions, a high gene content and frequent meiotic recombination. A chromosome conformation capture ordered sequence of the barley genome : Nature : Nature Research 2017-04-25T04:00:00Z Such structure does not allow meiotic pairing; instead, we find abundant evidence of gene conversion, which may limit the accumulation of deleterious mutations in the absence of meiosis. Genomic evidence for ameiotic evolution in the bdelloid rotifer Adineta vaga 2013-08-21T17:50:58.107Z Overlapping clone sequences were combined with WGS sequences and tied to the meiotic map, SATmap, which enabled independent placement and orientation of clones in the genome sequence. The zebrafish reference genome sequence and its relationship to the human genome 2013-04-24T17:21:53.517Z This cell is haploid and must go through another meiotic cell division. Biology for AP Courses 2022-06-09T00:00:00Z Female infertility caused by a meiotic recombination mutation or irradiation was reversed by mutation of . [Report] Reversal of Female Infertility by Chk2 Ablation Reveals the Oocyte DNA Damage Checkpoint Pathway 2014-01-30T19:26:12.333Z DNA methylation is a covalent base modification of plant nuclear genomes that is accurately inherited through both mitotic and meiotic cell divisions. Patterns of population epigenomic diversity 2013-03-13T18:21:41.540Z Moreover, extensive genotyping in pedigrees would be a means to test for segregation distortion introduced by meiotic drives. The genomic landscape of species divergence in Ficedula flycatchers 2012-12-05T15:23:01.900Z That is, unlike the indistinguishable groups of cells that are the product of plant and animal meiosis, the meiotic products of Neurospora and many ascomycetes are all kept in a neat row. How Ballistic Cup Fungi Fire Their Spores (and Look Cool Doing It) 2012-09-05T20:45:15.367Z This cell will start the first meiotic division and be arrested in its progress in the first prophase stage. Biology for AP Courses 2022-06-09T00:00:00Z Composite image showing fluorescent pollen demonstrating the increase in meiotic recombination. Decoding the dance of the chromosomes 2012-06-22T03:15:09.577Z Hence we get names for the two kinds of diminutives; viz., the term meiotic for the true diminutives, and the term hypocoristic for the diminutives of endearment. A Handbook of the English Language As meiotic drives are characterized by repeated episodes of selection, this would be compatible with the relative large size of divergence islands observed. The genomic landscape of species divergence in Ficedula flycatchers 2012-12-05T15:23:01.900Z After the meiotic or reduction divisions each gamete of course contains in its nucleus four single chromosomes. Hormones and Heredity This results in the primary oocyte finishing the first meiotic division. Biology for AP Courses 2022-06-09T00:00:00Z A fluorescent in situ hybridisation image of wild-type Arabidopsis just prior to the first meiotic division. Decoding the dance of the chromosomes 2012-06-22T03:15:09.577Z One egg is produced from each meiotic process, with the extra chromosomes and chromatids going into polar bodies that degenerate and are reabsorbed by the body. Biology for AP Courses 2022-06-09T00:00:00Z As in mitosis, external factors and internal signals regulate the meiotic cell cycle. Biology for AP Courses 2022-06-09T00:00:00Z Meiosis II, in which the second round of meiotic division takes place, includes prophase II, prometaphase II, and so on. Biology for AP Courses 2022-06-09T00:00:00Z A secondary meiotic arrest occurs, this time at the metaphase II stage. Biology for AP Courses 2022-06-09T00:00:00Z But we are the first to show that it limits meiotic crossing over in any species.” Decoding the dance of the chromosomes 2012-06-22T03:15:09.577Z Two haploid cells are the end result of the first meiotic division. Biology for AP Courses 2022-06-09T00:00:00Z Comparing the meiotic divisions of different protists may shed light on the evolution of meiosis. Biology for AP Courses 2022-06-09T00:00:00Z |
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