The differences between tumor suppressor genes and oncogenes
By: MKOrchard
For a cell to become cancerous, it generally must have both defective proto-oncogenes (also known as oncogenes) and defective tumor suppressor genes. The terms oncogene and tumor-suppressor gene each represent a category of genes, rather than name a specific gene. Both categories contribute to the...
Cloning Humans Allowed Evolution Adoption
By: Hans Hell
We can now make genetic copies of animals; cloning adult animals. It is not inconceivable that we over time will learn to do this in humans also. But we are faced with the question: Should we allow cloning ourselves? There could be several arguments speaking...
The role of DNA methyltransferase in gene expression
By: Alicia M Prater PhD
The DNA methyltransferases are a family of enzymes that add a methyl group (-CH3) to DNA in a process called methylation (for a 3D structure of the enzyme click here). DNA methylation is considered to be an epigenetic change because it does not alter the...
By: Carston Roach
Colorblindness actually is not normally caused by eye damage, a common misconception. Rather, people with colorblindness usually have some form of DNA disorder, although it is, rarely, caused by brain, eye, or nerve damage. Colorblindness is the source of many jokes, as well. When I...
What is epigenetics?
By: Effie Moore Salem
Epigenetics is a new field emerging on the horizon where something new in genetics is being brought into focus. It seeks to understand if there are probabilities, and yes, even possibilities, of human genes being changed over periods of time by the influences of the...
By: Terrence Aym
Millions who have lost fingers, toes, hands, feet—even entire arms or legs—will have new hope in the not-too distant future. They may be able to regrow their own missing parts.If they do, they can thank the salamander.Elly Tanaka, a Max Planck...
An overview of chromosomes
By: Hans Hell
Chromosomes are microscopically visible (when stained) structures in a cell which appears during cell division, called mitosis. Between the cell divisions the chromosomes will be loosened and is visible as a diffuse network in the cell nucleus and the individual chromosomes can no longer be...
By: Ann E. Smith
He just needs to sow his wild oats. Or she is somewhat easy on the eyes and with the boys. These types of expressions have existed for generations, all pointing to a certain type of behavior: promiscuity. And while promiscuity dates back thousands of years...
Pet Cloning Cloning Human Clones Danger of Cloning Clones
By: T. Scott Randolph
Cloning a pet is another step on the slippery slope to cloning humans. Although cloning is used sparingly in the agricultural world, that keeps it at an arms distance. Once you start talking about a household pet, the situation becomes a little more confusing. People...
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By: Renee Morgan
With all the scientific explanations of cloning, one would think that cloning is the next best thing since the coming of Christ! Human cloning is just another way to place man into that, “want to be God’ position and with this position isn’t...

 

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