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Next-generation Sequencing03:00

Next-generation Sequencing

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The first human genome sequencing project cost $2.7 billion and was declared complete in 2003, after 15 years of international cooperation and collaboration between several research teams and funding agencies. Today, with the advent of next-generation sequencing technologies, the cost and time of sequencing a human genome have dropped over 100 fold.
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Although all next-generation methods use different technologies, they all share a set of standard features....
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Sometimes we want to see how people change over time, as in studies of human development and lifespan. When we test the same group of individuals repeatedly over an extended period of time, we are conducting longitudinal research. Longitudinal research is a research design in which data-gathering is administered repeatedly over an extended period of time. For example, we may survey a group of individuals about their dietary habits at age 20, retest them a decade later at age 30, and then again...
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While every living organism has a genome of some kind (be it RNA, or DNA), there is considerable variation in the sizes of these blueprints. One major factor that impacts genome size is whether the organism is prokaryotic or eukaryotic. In prokaryotes, the genome contains little to no non-coding sequence, such that genes are tightly clustered in groups or operons sequentially along the chromosome. Conversely, the genes in eukaryotes are punctuated by long stretches of non-coding sequence.
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Genomics is the science of genomes: it is the study of all the genetic material of an organism. In humans, the genome consists of information carried in 23 pairs of chromosomes in the nucleus, as well as mitochondrial DNA. In genomics, both coding and non-coding DNA is sequenced and analyzed. Genomics allows a better understanding of all living things, their evolution, and their diversity. It has a myriad of uses: for example, to build phylogenetic trees, to improve productivity and...
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DNA sequencing is a fundamental technique that is routinely used in the biological sciences. This method can be applied to a range of questions at different scales - from the sequencing of a cloned DNA fragment or the study of a mutation in a gene up to whole-genome sequencing. However, despite the widespread use of sequencing today, it was not until 1977 that Fredrick Sanger and his collaborators developed the chain-termination method to decode DNA sequences. It relies on the separation of a...
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Big science projects face soaring costs, delays.

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    Summary

    Global challenges like pandemic lockdowns, supply chain disruptions, and rising inflation are impacting numerous sectors. These interconnected issues create significant economic and operational hurdles for businesses and consumers alike.

    Area of Science:

    • Economics
    • Supply Chain Management
    • Public Health

    Background:

    • The COVID-19 pandemic triggered unprecedented global lockdowns, disrupting established economic activities.
    • Subsequent supply chain vulnerabilities were exposed and exacerbated by geopolitical events and demand fluctuations.
    • Persistent inflation emerged as a significant macroeconomic challenge, affecting purchasing power and business costs.

    Discussion:

    • The convergence of these factors presents a complex, multifaceted crisis.
    • Analysis of the interdependencies between public health measures, logistics, and monetary policy is crucial.
    • Understanding the ripple effects on various industries and consumer behavior is essential for mitigation.

    Key Insights:

    • Lockdowns severely disrupted production and distribution networks.

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  • Supply chain bottlenecks led to shortages and increased lead times.
  • Inflation eroded consumer spending and increased operational expenses for businesses.

    • Outlook:

    • Strategies for building resilient supply chains are paramount.
    • Economic policies must address inflation without stifling recovery.
    • Long-term planning for pandemic preparedness and economic stability is necessary.