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Biorientation is the phenomenon whereby microtubules emanating from different microtubule organizing centres (MTOCs) attach to kinetochores of sister chromatids.This results in the sister chromatids moving to opposite poles of the cell during cell division, and thus results in both daughter cells having the same genetic information.
During this time, Kozak had 3,107 citations. [4] Her most cited work was from 1984, entitled "Compilation and analysis of sequences upstream from the translational start site in eukaryotic mRNAs ". This paper highlighted the research that brought the known cellular mRNAs from 32 to 166.
Four ways of explaining the Westermarck effect, the lack of sexual interest in one's siblings (Wilson, 1998:189–196): Function: To discourage inbreeding, which decreases the number of viable offspring. Phylogeny: Found in a number of mammalian species, suggesting initial evolution tens of millions of years ago.
The phase of the Moon does not influence fertility, cause a fluctuation in crime, or affect the stock market. There is no correlation between the lunar cycle and human biology or behavior. However, the increased amount of illumination during the full moon may account for increased epileptic episodes, motorcycle accidents, or sleep disorders.
Systematic evolution of ligands by exponential enrichment (SELEX), also referred to as in vitro selection or in vitro evolution, is a combinatorial chemistry technique in molecular biology for producing oligonucleotides of either single-stranded DNA or RNA that specifically bind to a target ligand or ligands.
The terms animal testing, animal experimentation, animal research, in vivo testing, and vivisection have similar denotations but different connotations.Literally, "vivisection" means "live sectioning" of an animal, and historically referred only to experiments that involved the dissection of live animals.
Antigenic variation can result from gene conversion, [1] site-specific DNA inversions, [2] hypermutation, [3] or recombination of sequence cassettes. [4] The result is that even a clonal population of pathogens expresses a heterogeneous phenotype. [5] Many of the proteins known to show antigenic or phase variation are related to virulence. [6]
Rop (also known as repressor of primer, or as RNA one modulator (ROM)) is a small dimeric protein responsible for keeping the copy number of ColE1 family and related bacterial plasmids low in E. coli by increasing the speed of pairing between the preprimer RNA, RNA II, and its antisense RNA, RNA I. [1] Structurally, Rop is a homodimeric four-helix bundle protein formed by the antiparallel ...