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31 Μαΐ 2022 · Here, we show that Ki-67 plays a key role to mediate the relocation of pre-rRNAs to mitotic chromosomes. Similar to Ki-67, pre-rRNAs are evenly distributed to the chromosome periphery. Ki-67 ...
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20 Ιουν 2019 · During mitosis, replicated chromosomes segregate such that each daughter cell receives one copy of the genome. Faithful mechanical transport during mitosis requires that chromosomes undergo extensive structural changes as the cell cycle progresses, resulting in the formation of compact, cylindrical bodies.
27 Μαρ 2023 · Most cell division results in genetically identical daughter cells. First, a dividing cell replicates its DNA. After a variety of steps, the cell divides via mitosis and cytokinesis. Mitosis is one part of the cell cycle, which is detailed below.[1][2][3]
1 Ιαν 2020 · Vast classes of molecules including noncoding RNAs also play critical roles in numerous biological processes. Cell division via mitosis and meiosis allows for the division of parent cells and dissemination of genetic information.
Cells Produce Several Types of RNA. The majority of genes carried in a cell's DNA specify the amino acid sequence of proteins; the RNA molecules that are copied from these genes (which ultimately direct the synthesis of proteins) are called messenger RNA (mRNA) molecules.
During mitosis, a eukaryotic cell undergoes a carefully coordinated nuclear division that results in the formation of two genetically identical daughter cells.
DNA is divided into chromosomes, or groups of genes, which code for proteins. Asexually reproducing organisms reproduce using mitosis, while sexually reproducing organisms reproduce using meiosis. Both these mechanisms involve duplication of DNA, which then gets passed to offspring. RNA is a key component in the duplication of DNA.
