Molecular Biology

  • The Pathophysiology of Dengue Hemorrhagic Fever

    Dengue hemorrhagic fever (DHF) is a more severe form of dengue fever. It is spread by the bite of an Aedes mosquito and primarily affects children under the age of 10. Dengue viruses are mostly found in tropical parts of the world.
    By Paul Arnold November 23, 2009 

  • How Do Digestive Enzymes Work?

    Digestive enzymes are responsible for helping the body break down foods. These enzymes reside principally in three parts of our bodies: the oral cavity, stomach and small intestine. Read on to learn how digestive enzymes work.
    By Nicki H November 23, 2009 

  • Typhoid Fever - Genetics and Symptoms

    Typhoid fever, or simply typhoid, was responsible for erasing one third of the population of Athens in Greece. Today, it is the cause of approximately 200,000 deaths per year. In this article we focus on typhoid fever, typhoid symptoms, and how to prevent...
    By Rafael November 23, 2009 


  • The Showerhead Bacteria Lurking Inside Your Bathroom

    You may think you are alone when you're standing under a shower, but you'd be wrong as you always have company. The uninvited bathroom guests are the showerhead bacteria raining down on you in the streams of water.
    By Paul Arnold November 20, 2009 

  • A Look at Parvovirus in Humans

    Human parvovirus is known as the B19 virus or parvovirus B19. It is a member of the family of viruses known as Parvoviridae and it causes a childhood rash known as fifth disease.
    By Paul Arnold November 20, 2009 

  • How to Defeat a Virus - Study Bacteriophage Parts and Function

    Viruses are a plague on humankind; bacteria also find them pretty annoying. Studying how these viruses attack bacteria can help scientists to develop new kinds of treatments for bacterial infections.
    By Paul Arnold November 19, 2009 


  • Who Discovered the Mitochondria?

    There isn't one single person credited with discovering the mitochondria, as over the years a number of scientists have made important contributions to the study of the discovery of this important cellular structure.
    By Jason C. Chavis November 19, 2009 

  • What is Dengue Fever?

    Dengue fever is a mosquito-borne virus affecting people in tropical and subtropical regions. It is also known as "breakbone" fever due to the severe joint and muscle pain that it causes.
    By Finn Orfano November 17, 2009 

  • What are Telomeres?

    Telomeres are repetitive sequences of DNA at the ends of chromosomes. They protect these sub-cellular structures from attack and destruction.
    By Paul Arnold November 16, 2009 

  • Discovery and Uses of Restriction Endonucleases

    Learn about the " Molecular scissors" that countless life scientists handle on a regular basis as part of their lab work. How were these restriction enzymes discovered and why have they revolutionized modern molecular biology? Read on to learn...
    By Balachandar Radhakrishnan November 15, 2009 
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