| 单词 | centromere |
| 例句 | A karyotype is the number and appearance of chromosomes, including their length, banding pattern, and centromere position. Concepts of Biology 2013-04-25T00:00:00Z The connection between the sister chromatids is closest in a region called the centromere. Biology for AP Courses 2022-06-09T00:00:00Z They are attached to each other at a point called the centromere. Miller & Levine Biology 2018-01-01T00:00:00Z The centromere is the structure that attaches one sister chromatid to another. Anatomy and Physiology 2013-06-19T00:00:00Z In sequencing each centromere, they learned the duplicated regions vary greatly in size, unexpected because these knobs serve the same purpose in each chromosome. Most complete human genome yet reveals previously indecipherable DNA 2022-03-30T04:00:00Z The darkly staining regions usually contain genes that are not active, and are found in the regions of the centromere and telomeres. Concepts of Biology 2013-04-25T00:00:00Z The chromosomes are bound tightly together and in perfect alignment by a protein lattice called a synaptonemal complex and by cohesin proteins at the centromere. Biology for AP Courses 2022-06-09T00:00:00Z Dr. Altemose plans on using the complete genome to explore a particularly mysterious region in each chromosome known as the centromere. Scientists Finish the Human Genome at Last 2021-07-23T04:00:00Z The kinetochore is a protein structure on the centromere that is the point of attachment between the mitotic spindle and the sister chromatids. Anatomy and Physiology 2013-06-19T00:00:00Z To function correctly, yeast chromosomes need protective structures called telomeres at both ends, and only one centromere — a region that ensures the accurate segregation of chromosomes into mother and daughter cells during cell division. Yeast chromosome numbers minimized using genome editing 2018-07-31T04:00:00Z To determine whether the distribution of TE families along Ae. tauschii chromosomes was homogeneous, mean TE distances to the centromere for the 22 most abundant Gypsy and Copia families were computed. Genome sequence of the progenitor of the wheat D genome Aegilops tauschii 2017-11-14T05:00:00Z Notice that homologous chromosomes are the same size, and have the same centromere positions and banding patterns. Biology for AP Courses 2022-06-09T00:00:00Z The centromere region contains thousands of repeated segments of DNA. Scientists Finish the Human Genome at Last 2021-07-23T04:00:00Z Closer proximity to the centromere is indicated by a darker colour. A chromosome conformation capture ordered sequence of the barley genome : Nature : Nature Research 2017-04-25T04:00:00Z In S. cerevisiae, each chromosome must have protective structures known as telomeres at both ends, as well as a single structure called a centromere that is essential for normal chromosome segregation during cell division. Yeast chromosome numbers minimized using genome editing 2018-07-31T04:00:00Z The unassigned scaffolds contained more complete elements compared to truncated elements than the pseudomolecules, which suggests that unassigned scaffolds are enriched for centromere core sequences. Genome sequence of the progenitor of the wheat D genome Aegilops tauschii 2017-11-14T05:00:00Z In a given species, chromosomes can be identified by their number, size, centromere position, and banding pattern. Biology for AP Courses 2022-06-09T00:00:00Z Purple lines mark homoeologous genes present in both L and S chromosomes, the black line marks the approximate centromere location on each chromosome. Genome evolution in the allotetraploid frog Xenopus laevis : Nature : Nature Research 2016-10-18T04:00:00Z Closer proximity to the centromere is indicated by a darker colour. A chromosome conformation capture ordered sequence of the barley genome : Nature : Nature Research 2017-04-25T04:00:00Z The remaining 40 centromeric sequences are incomplete centromere repeat fragments broken during assembly or solo repeats not associated with a larger centromere satellite. Single-molecule sequencing of the desiccation-tolerant grass Oropetium thomaeum : Nature : Nature Publishing Group 2015-11-10T05:00:00Z In order to maintain stability and normal segregation at mitosis, one centromere of a dicentric chromosome needs to be inactive. Constitutional and somatic rearrangement of chromosome 21 in acute lymphoblastic leukaemia 2014-04-04T22:52:26.172Z The chromosome “arms” projecting from either end of the centromere may be designated as short or long, depending on their relative lengths. Biology for AP Courses 2022-06-09T00:00:00Z Purple lines mark homoeologous genes present in both L and S chromosomes, the black line marks the approximate centromere location on each chromosome. Genome evolution in the allotetraploid frog Xenopus laevis : Nature : Nature Research 2016-10-18T04:00:00Z Alpha satellite is the expected flagship sequence for these blackout zones as it benefits from prior experimental characterization and associates with the centromere, or the site responsible for proper chromosome segregation during cell division. Our First View into the “Blackout Zones” of the Human Genome 2014-03-06T20:07:51Z This 'gentle giant' grabs onto a single special locus on the chromosome known as the centromere. Getting a Tighter Grip on Cell Division 2010-11-30T16:14:00Z This is often depicted by decondensation of the chromatin, in contrast to tightly condensed chromatin of an active centromere. Constitutional and somatic rearrangement of chromosome 21 in acute lymphoblastic leukaemia 2014-04-04T22:52:26.172Z A pericentric inversion that is asymmetric about the centromere can change the relative lengths of the chromosome arms, making these inversions easily identifiable. Biology for AP Courses 2022-06-09T00:00:00Z A karyotype is the number and appearance of chromosomes, and includes their length, banding pattern, and centromere position. Biology for AP Courses 2022-06-09T00:00:00Z In addition to the banding patterns, chromosomes are further identified on the basis of size and centromere location. Biology for AP Courses 2022-06-09T00:00:00Z This is often depicted by decondensation of the chromatin, in contrast to tightly condensed chromatin of an active centromere. Constitutional and somatic rearrangement of chromosome 21 in acute lymphoblastic leukaemia 2014-04-04T22:52:26.172Z In order to maintain stability and normal segregation at mitosis, one centromere of a dicentric chromosome needs to be inactive. Constitutional and somatic rearrangement of chromosome 21 in acute lymphoblastic leukaemia 2014-04-04T22:52:26.172Z Heterochromatin usually contains genes that are not expressed, and is found in the regions of the centromere and telomeres. Biology for AP Courses 2022-06-09T00:00:00Z This is often depicted by decondensation of the chromatin, in contrast to tightly condensed chromatin of an active centromere. Constitutional and somatic rearrangement of chromosome 21 in acute lymphoblastic leukaemia 2014-04-04T22:52:26.172Z In order to maintain stability and normal segregation at mitosis, one centromere of a dicentric chromosome needs to be inactive. Constitutional and somatic rearrangement of chromosome 21 in acute lymphoblastic leukaemia 2014-04-04T22:52:26.172Z |
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