DNA takes this form following DNA replication during the process of cell division when the two replicated chromosomes, called chromatids, are highly condensed and still attached to one another at ...
The chromatids (now also considered chromosomes) arrive at the opposite ends of the cell, and new nuclear membranes form. Mitosis, which describes only the division of the nucleus, is now complete.
The length of these kinetochore-attached microtubules then decreases during mitosis, pulling sister chromatids to opposite poles of the spindle. Other spindle fibers do not attach to chromosomes ...
The nucleus of a germline stem cell undergoes two divisions, firstly separating homologous chromosomes and secondly separating chromatids. Haploid gametes contain 23 single chromosomes.
Each replicated chromosome is made up of two identical strands called chromatids that are joined together. Each chromatid is a full length DNA molecule. The stages outlined in the following ...
Like natural chromosomes, artificial ones need centromeres to attach to mitotic spindles and separate sister chromatids during cell divisions. Centromeres are defined by the presence of a specialized ...
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Study gives first view of centromere variation and evolutionA genomic study of human and selected nonhuman primate centromeres has revealed their unimaginable diversity and speed of evolutionary change. In cell genetics, a centromere is the spot where two ...
Since sister chromatids are identical to each other, recombination with a sister chromatid is expected, in most cases, to be a precise way for repairing DNA damage. Recombination between 2 different ...
During mitosis, or M-phase, the “glued” chromosomes (sister chromatids) align on a scaffold known as the mitotic spindle. Upon completion of alignment, the sister chromatids become separated and ...
the chromosome number is reduced in half through similar, but more complex, stages of cell division. During meiosis II, each haploid cell divides its 2 DNA threads (chromatids) between daughter ...
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