Methods Mol Biol
August 2024
During meiosis, homologous chromosomes reciprocally exchange segments of DNA via the formation of crossovers. However, the frequency and position of crossover events along chromosomes are not random. Each chromosome must receive at least one crossover, and the formation of a crossover at one location inhibits the formation of additional crossovers nearby.
View Article and Find Full Text PDFViruses that infect animals regularly spill over into the human population, but individual events may lead to anything from a single case to a novel pandemic. Rapidly gaining an understanding of a spillover event is critical to calibrating a public health response. We here propose a novel method, using likelihood-free rejection sampling, to evaluate the properties of an outbreak of swine-origin influenza A(H1N2)v in the United Kingdom, detected in November 2023.
View Article and Find Full Text PDFBackground: Emergency medical services (EMS) transporting patients to the emergency department (ED) typically call ahead to provide an estimated time to arrival (ETA). Accurate ETA facilitates ED preparation and resource allotment in anticipation of patient arrival.
Objective: The study purposed to determine the accuracy of ETA provided by EMS ground units.
Meiosis is a specialized eukaryotic division that produces genetically diverse gametes for sexual reproduction. During meiosis, homologous chromosomes pair and undergo reciprocal exchanges, called crossovers, which recombine genetic variation. Meiotic crossovers are stringently controlled with at least one obligate exchange forming per chromosome pair, while closely spaced crossovers are inhibited by interference.
View Article and Find Full Text PDFQuantitative gene regulation at the cell population level can be achieved by two fundamentally different modes of regulation at individual gene copies. A 'digital' mode involves binary ON/OFF expression states, with population-level variation arising from the proportion of gene copies in each state, while an 'analog' mode involves graded expression levels at each gene copy. At the floral repressor 'digital' Polycomb silencing is known to facilitate quantitative epigenetic memory in response to cold.
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