By: Celestia Canute
Throughout history, many a scientist has studied a chemical substance that duplicated itself. Eventually, scientists learned that this substance, housed within each gene, was deoxyribonucleic acid (DNA) and that it carried the road map to one's life; that is, it transferred genetic information from the...
By: James Ashman
PAGE and Western Blots.Polyacrylamide gel electrophoresis and western blotting are two of the fundamental techniques in the molecular biologists tool box. Together they allow for the isolation and identification of a single protein of interest from a complex mixture. A common use for this...
By: Uritza Houghton
A stem cell is an unspecialized cell that has the ability to grow into any one of the body's more than 200 cell types. If scientists find a way to manipulate these cells, then all kinds of diseases, including but not limited to, Parkinson's, Alzheimer's...
By: Lee Norris
A debate going on in the scientific communities about the benefits of fertilizing the oceans with iron as a way to combat global warming. The theory behind iron fertilization is to remove CO2 gas from the environment by creating phytoplankton blooms. In large sections of...
By: Naveen Mahmood
Manipulation of nucleic-acids is based on their physical & chemical properties in turn reflected in their biological function; intrinsically DNA is a very stable molecule; it has been recovered from frozen mammoths in high-enough quality to be cloned; this stability is provided by the strong...
By: Kyle Bynum
It's 2:00 A.M. Michael, 54, has just been admitted into the emergency room. He has hemorrhaged in his brain, an incident that modern science calls a stroke. If Michael survives, he could face paralysis, loss of normal brain function, and other serious effects. But...
By: Alicia M Prater PhD
The polymerase chain reaction, known more commonly as PCR, is a lab technique used to amplify a sequence of DNA. The process takes advantage of the cellular system of DNA replication. Geneticists and medical researchers use PCR to determine if certain genes are present in...
By: Angelika Reiter
The hypothesis of the RNA world arose from a chicken and egg scenario. Earlier, before Avery, Watson and Crick had unquestionably established the genetic role of DNA, the heritable factor was believed to be proteinaceous. But neither the simplicity of the four bases of DNA...
By: Jordan Larry
There were many discoveries that had taken places in the late 1800s and early 1900s that had to do with heredity. Scientists, Cutton and Boveri formulated the chromosome theory of heredity in 1903, but the question was still not fully answered on what genes are...
By: Perry McCarney
Polymerase chain reaction (PCR) is the process used by all those investigating DNA (deoxyribonucleic acid), from any source, to produce a sufficiently large sample for the purposes of their investigation, if they only have a sample otherwise to small for their tests. This multiplication of...

 

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