Bacteriophages are a type of virus that prey upon bacterial cells. The reproduction of bacteriophages always involves death of the infected bacterium, when the viruses burst out or lyse their prokaryotic host cell. Bacteriophages reproduce by commandeering a bacterium and…
Read more
When bacterial cultures are grown in a laboratory environment, they are essentially captives, part of a microbial zoo dependent on people to provide the proper environment for their survival and growth. A nutrient-rich media is required to grow bacteria in…
Read more
Gram- bacteria stain pink due to the location of cell wall peptidoglycan and an external LPS membrane. Here’s how Gram staining identifies Gram negative organisms. * Christian Gram’s Stain * In the 1800’s, Christian Gram, a Danish bacteriologist, developed a…
Read more
Alzheimer’s disease can take a huge toll on close family members watching their loved one forget who their family is let alone who they are. According to the Alzheimer’s Association, Alzheimer’s disease is the number one cause of Dementia. The…
Read more
Infectious disease can result of cellular organisms, such as bacteria (prokaryotes), from eukaryotes (cells like ours) or from nonliving infectious agents such as viruses, virioids and prions. Here is a summery of the different types of acellular, nonliving infectious agents….
Read more
H-DNA as a Potential cis-Element Regulating Gene Expression Subhankar Chakraborty DNA triplexes are formed when a polypurine segment of duplex DNA is recognized and bound by a single stranded oligonucleotide lodging in the major groove of the duplex. Such a…
Read more
Eucalyptus globulus or Tasmanian Blue Gum belongs to the plant family Myrtaceae or myrtles. A French explorer, Jacques-Julien Houton de Labillardiere first described the tree in 1799. Eucalytus is derived from the Greek words ‘eu’ meaning ‘well’ and ‘kalypto’ ‘to…
Read more
No one is yet certain how multicellular life evolved. There are three prominent theories about how it happened, with one a strong favorite among scientists. Symbiosis Throughout the world, many organisms live in symbiosis. Symbiosis is an association of two…
Read more
What is cell differentiation? At conception human cells are produced and begin to divide. These cells contain all the genes that the body needs to grow, develop, and carry out the different functions of the body. The process in which…
Read more
Understanding Kidneys Mammals are made up of millions of cells, each containing cytoplasm and a nucleus surrounded by a membrane. Together these cells make up all of our being including blood, bone, and organs. Each organ has a purpose, and…
Read more