By: John Devera
Kirk Versus the TherminatorKirk versus the TerminatorStar Trek predicted a war between genetically modified humans and their lesser, unmodified cousins. Well, we saw where that led. Kirk kicked Khan's butt twice. Babylon 5 predicted a war between the telepaths, who were genetically modified by the...
By: SW Garner
Photosynthesis is the basic mechanism that plants with chlorophyll use to to convert sunlight into energy. Like all living things, plants, algae and human beings need some way of turning the food they take into the body's most basic unit -the cell (single or multiple)into...
By: Alij Mega
Why marsupials are confined to only Australia and South America?This is a common misconception. Their present distribution may be just limited two these southern continents, but if we crank back the geologic time a little further back, perhaps some 20-30 million years or so...
By: Silvia Casabianca
Because the technological advances characteristic of these times have made our lives easier in many ways, we have encumbered science. Hiroshima and Nagasaki are a tremendous reminder that the imprudent use of the power granted by scientific innovation can become the most destructive of human...
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...
The role of pre-existing cellular structures in the formation of new cellular structures
By: Javid.bio-bee
Extensive developmental studies have been shown that the pre-existing cellular structures play a key role in the formation of new cellular structures. Various processes such as homonucleation, heteronucleation and allosteric transitions are observed to involve in the developmental phenomenon. The studies on the development of...
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: Meg Bell
Agrobacterium tumefaciens (A. tumefaciens) is a widespread soil bacterium that causes a disease in plants called Crown Gall. This disease attacks plants such as fruit-bearing trees. A. tumefaciens is a unique in that it is "the only example of interkingdom DNA transfer." Because of...

 

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