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An application of the study of somatic mosaicism in the brain could be the tracing of specific brain cells. Indeed, if the somatic L1 insertions occurs in a progenitor cell, the unique variant could be used to trace the progenitor cell's development, localization, and spreading through the brain. On the contrary, if the somatic L1 insertion ...
Mutations in neuronal stem cells (especially during neurogenesis) [18] and in post-mitotic neurons lead to genomic heterogeneity of neurons—referred to as "somatic brain mosaicism". [3] The accumulation of age-related mutations in neurons may be linked to neurodegenerative diseases, including Alzheimer's disease, but the association is ...
Somatic hypermutation (or SHM) is a cellular mechanism by which the immune system adapts to the new foreign elements that confront it (e.g. microbes).A major component of the process of affinity maturation, SHM diversifies B cell receptors used to recognize foreign elements and allows the immune system to adapt its response to new threats during the lifetime of an organism. [1]
Gonosomal mosaicism is a type of somatic mosaicism that occurs very early in the organisms development and thus is present within both germline and somatic cells. [1] [22] Somatic mosaicism is not generally inheritable as it does not usually affect germ cells. In the instance of gonosomal mosaicism, organisms have the potential to pass the ...
Memory transfer proposes a chemical basis for memory termed memory RNA which can be passed down through flesh instead of an intact nervous system. Since RNA encodes information [ 1 ] and living cells produce and modify RNA in reaction to external events, it might also be used in neurons to record stimuli.
Reprogramming is distinct from development of a somatic epitype, [37] as somatic epitypes can potentially be altered after an organism has left the developmental stage of life. [38] During somatic cell nuclear transfer, the oocyte turns off tissue specific genes in the somatic cell nucleus and turns back on embryonic specific genes.
The somatic marker hypothesis, formulated by Antonio Damasio and associated researchers, proposes that emotional processes guide (or bias) behavior, particularly decision-making. [1] [2] "Somatic markers" are feelings in the body that are associated with emotions, such as the association of rapid heartbeat with anxiety or of nausea with disgust ...
Somatic recombination, as opposed to the genetic recombination that occurs in meiosis, is an alteration of the DNA of a somatic cell that is inherited by its daughter cells. The term is usually reserved for large-scale alterations of DNA such as chromosomal translocations and deletions and not applied to point mutations .