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The biology of this system is basically the inverse of the BRAF system described above. Potogenes . Pseudogenes can, over evolutionary time scales, participate in gene conversion and other mutational events that may give rise to new or newly functional genes.
Trajectory inference as implemented in Slingshot for (a) a simulated two-dimensional dataset and (b) a single-cell RNA-seq dataset of the olfactory epithelium.. Trajectory inference or pseudotemporal ordering is a computational technique used in single-cell transcriptomics to determine the pattern of a dynamic process experienced by cells and then arrange cells based on their progression ...
When a family or genus goes extinct it must be true extinction, because pseudoextinction would mean that at least one member of the family or genus is still extant. [ 13 ] Pseudoextinction is an event that occurs much more frequently under the assumption of a Phyletic gradualism model of evolution, under which speciation is slow, uniform and ...
Diagram of the six types of shift in heterochrony, a change in the timing or rate of any process in embryonic development. Predisplacement, hypermorphosis, and acceleration extend development (peramorphosis, in red); postdisplacement, hypomorphosis, and deceleration all truncate it (paedomorphosis, in blue). These may be combined, e.g. to shift ...
[20] [21] The role of pseudoenzymes as "pseudo scaffolds" has also been recognised [22] and pseudoenzymes are now beginning to be more thoroughly studied in terms of their biology and function, in large part because they are also interesting potential targets (or anti-targets) for drug design in the context of intracellular cellular signalling ...
The term pseudostratified is derived from the appearance of this epithelium in the section which conveys the erroneous (pseudo means almost or approaching) impression that there is more than one layer of cells, when in fact this is a true simple epithelium since all the cells rest on the basement membrane. The nuclei of these cells, however ...
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Several important biological processes rely on RNA molecules that form pseudoknots, which are often RNAs with extensive tertiary structure.For example, the pseudoknot region of RNase P is one of the most conserved elements in all of evolution.