By: Don Wright
We enter life through an evolving doorI was perusing some old magazines the other day when I came across an article by a molecular biologist named Mitch Sogin who using DNA sequencing discovered that we, mankind, are all descendants of the sponge. There goes my...
By: Dr. Bryan Katz
Polyacrylamide Gel Electrophoresis, henceforth abbreviated PAGE, is an essentialtool in protein separation, esp. for a technique known as Western Blot, whichwill be discussed shortly. Similar to agarose gel electrophoresis, the basis ofprotein separation in PAGE is size - larger proteins move through a gel...
By: Rosanne O'Reilly
Why bother with Y-DNA or mt-DNA tests?Did you ever get to the point where you checked all the records you could find but could not determine where your family Surname originated? If you have found gaps, then the next step may be a Y-DNA...
By: Janelle Ryan
Cloning, in broad terms is the process of making an exact copy of something. In terms of biology it refers specifically to making an exact copy of DNA, Cells or whole Organisms. Cloning has many uses but since all of the other articles focus on...
By: Javid.bio-bee
DNA rearrangement is a phenomenon that involves the alteration of the basic genome sequences and results in diverse activities such as the regulation of gene expression, development, generation of antibody diversity etc. The role of DNA rearrangements is observed to be especially predominant in lower...
By: Javid.bio-bee
Introduction: RNA interference, also known as RNA mediated interference or in short RNAi, is a mechanism of regulation of gene expression by certain RNA molecules such as miRNAs (micro RNAs), siRNAs (short interfering RNA/silencing RNA) etc. MicroRNAs are small single stranded RNA molecules of about...
By: Javid.bio-bee
The RNA world hypothesis is a theory that proposes the existence of a RNA cell (ribocyte) before the modern cells were evolved. The properties of the RNA to act as a genetic information storage molecule and as a catalyst, like proteins (enzyme) make the idea...
By: Javid.bio-bee
The three most prominent roles of RNA are that of mRNA, tRNA and rRNA. Apart from these RNAs there is another class of RNAs referred as noncoding RNAs (ncRNAs) that perform a variety of functions such as in gene expression/regulation, protein synthesis, modification of macromolecules...
By: Ernest Capraro
Ah, possibilities. To any science fiction author or fan, this is a no brainer. We are, after all, in the business of considering new possibilities. We will ignore the fact that there are already life forms based on RNA, since that is really a technicality...
By: Katherine Harms
The term "positive eugenics" is an oxymoron. Anyone who thinks that humans could possibly manage reproduction and select offspring in a way that will be good for society as a whole should look at any thoroughbred population in the animal world. Thoroughbred race horses, German...

 

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