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Results 461 - 470 of 633 for dna
  • Artificial Ribozymes
    Life Sciences - 20 Jul 2023
    Ribozymes exist in nature as catalytic RNA molecules that either aid the hydrolysis of their own phosphodiester bonds or cause the hydrolysis of bonds in other RNAs. They also catalyze the...
  • What is Lentivirus?
    Life Sciences - 20 Jul 2023
    Viruses are small obligate intracellular parasites with either a RNA or DNA genome that are surrounded by a protective protein coat and transfer their genetic material to infected cells.
  • Systemic Telomere Length and Aging
    Life Sciences - 20 Jul 2023
    Telomere length is the result of the equilibrium between shortening and lengthening mechanisms, and in many different organisms there is a decrease in length with increasing age. This suggests that...
  • Telomeres and Cancer
    Life Sciences - 20 Jul 2023
    A ribonucleoprotein enzyme complex known as telomerase maintains telomere length in cancer cells by adding TTAGGG repeats onto the telomeric ends, compensating for the normal shortening of telomeres...
  • MicroRNA Nomenclature
    Life Sciences - 20 Jul 2023
    MicroRNAs (miRNAs) are evolutionary conserved small non-coding RNA molecules that post-transcriptionally regulate gene expression by base-pairing to mRNAs. Recent evidence shows that miRNA-mediated...
  • What is Molecular Biology?
    Life Sciences - 20 Jul 2023
    Molecular biology is a branch of science concerning biological activity at the molecular level.
  • Magnetic Beads: Life Science Applications
    Life Sciences - 19 Jul 2023
    Magnetic nanomaterials have been extensively used for diagnostic and therapeutic applications. In biomedical realm, magnetic nanoparticles are most often used in the form of magnetic beads made by...
  • Optical, Electron and Scanning Probe Microscopy
    Life Sciences - 19 Jul 2023
    Microscopes are of three basic types: optical, electron (or ion), and scanning probe. The modern optical or light microscope was developed in the mid-19th century. Optical microscopes use transparent...
  • Virus Purification Methods
    Life Sciences - 19 Jul 2023
    Virus purification methods include ultracentrifugation, chromatography, precipitation, nanofiltration
  • What is the Genetic Code?
    Life Sciences - 19 Jul 2023
    The genetic code is a set of instructions that direct the translation of DNA into 20 amino acids, the basic units of proteins in living cells. The genetic code is made up of codons, which are...

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