Search results
Results from the WOW.Com Content Network
L-form bacteria that lack a cell wall do not require FtsZ for division, which implies that bacteria may have retained components of an ancestral mode of cell division. [ 16 ] Much is known about the dynamic polymerization activities of tubulin and microtubules , but little is known about these activities in FtsZ.
[5] [6] After growth from the zygote to the adult, cell division by mitosis allows for continual construction and repair of the organism. [7] The human body experiences about 10 quadrillion cell divisions in a lifetime. [8] The primary concern of cell division is the maintenance of the original cell's genome.
Next, the templates are removed and the fragments are assembled by homology in a process similar to PCR. [30] Some major benefits include the smaller requirement for parent genes due to the use of ss templates and increased sequence diversity by mispriming and misincorporation. [7] [30] One disadvantage of RPR is the preparation of the template ...
FtsZ can polymerize into tubes, sheets, and rings in vitro, and forms dynamic filaments in vivo. TubZ functions in segregating low copy-number plasmids during bacterial cell division. The protein forms a structure unusual for a tubulin homolog; two helical filaments wrap around one another. [21]
This is an accepted version of this page This is the latest accepted revision, reviewed on 19 December 2024. Process in which chromosomes are replicated and separated into two new identical nuclei For the type of cell division in sexually reproducing organisms used to produce gametes, see Meiosis. For excessive constriction of the pupils, see Miosis. For the parasitic infestation, see Myiasis ...
In order to preserve genetic information during cell division, DNA replication must be completed with high fidelity. In order to achieve this task, eukaryotic cells have proteins in place during certain points in the replication process that are able to detect any errors during DNA replication and are able to preserve genomic integrity.
A CGG repeat will form a G-quadruplex due to Hoogsteen base pairing, while a GAA repeat forms a triplex due to negative supercoiling. [25] [27] CAG, CTG, and CGG repeats form a hairpin. After the hairpin forms, the primer realigns with the 3' end of the newly synthesized strand and continues the synthesis, leading to triplet repeat expansion. [23]
Kinetochore proteins can be grouped according to their concentration at kinetochores during mitosis: some proteins remain bound throughout cell division, whereas some others change in concentration. Furthermore, they can be recycled in their binding site on kinetochores either slowly (they are rather stable) or rapidly (dynamic).