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  • Scientists extend telomeres to slow cell aging

    Will extending telomeres lead to longer, healthier lives? Researchers have taken an important step toward answering this question by developing a new treatment used in the laboratory that extends telomeres.One of the key aspects of aging is the shortening of telomeres over time. Telomeres, which ser more

  • New tool could help reshape the limits of synthetic biology

    NYU Langone yeast geneticists report they have developed a novel tool — dubbed "the telomerator" — that could redefine the limits of synthetic biology and advance how successfully living things can be engineered or constructed in the laboratory based on an organism's genetic, chemical base-pair stru more

  • How the ends of chromosomes are maintained for cancer cell immortality

    Maintaining the ends of chromosomes, called telomeres, is a requisite feature of cells that are able to continuously divide and also a hallmark of human cancer. "Telomeres are much like the plastic cap on the ends of shoelaces -- they keep the ends of DNA from fraying," says Roger Greenberg, MD, PhD more

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  • Genome Sequencer 20 System: Breakthrough in a New Applications Age of Sequencing

    The Genome Sequencer 20 System is an ultra-high-throughput automated DNA sequencing system capable of carrying out and monitoring sequencing reactions in a massively parallel fashion. Since the Genome Sequencer 20 System provides a complete solution for ultra-high-throughput DNA sequencing, an individual researcher can for the first time prepare samples and sequencing reactions, generate sequence reads, and assemble genome sequence data within days. more

  • Nobel Prize for Solving the End-Replication Problem

    The Nobel Assembly awarded this year's Nobel Prize in Medicine to Elizabeth H. Blackburn, Jack W. Szostak, and Carol W. Greider for the discovery of how chromosomes are protected by telomeres and the enzyme telomerase. With their ingenious genetic research and meticulous biochemical studies, they not only solved a fundamental problem in biology but also opened a new field of research and initiated the development of potential therapies against disease more

  • Aphidicolin-Mediated Replication Stress Induces Submicroscopic Tumor-Like Deletions in FHIT/FRA3B

    Common fragile sites (CFSs) are loci that are particularly susceptible to forming gaps and breaks on metaphase chromosomes after partial inhibition of DNA synthesis, for example induced by aphidicolin (APH). FRA3B, a fragile site lying within the FHIT tumor suppressor gene, is a site of frequent heterozygous and homozygous deletions in cancer cells and precancerous lesions. Most FHIT and other CFS-associated gene rearrangements in tumors are deletions of hundreds of kilobases often resulting in the inactivation of associated genes. However, there has been no direct evidence showing that CFS instability or replication stress can induce submicroscopic deletions like the ones found in cancer cells. Durkin et al. produced FHIT/FRA3B deletions similar to those in tumor cells by inducing replication stress in human-mouse chromosome 3 somatic hybrid cells with APH. more

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List of number of chromosomes of various organisms

List of number of chromosomes of various organisms This page lists the numbers of Chromosome s in various plants , animals , protists , and other living organisms, given as the diploid number (2n) Sorted alphabetically *African Wild Dog 78 ... more


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