Transformation is one of three basic mechanisms for genetic exchange in bacteria. Transformation may be either a natural process—that is, one that has evolved in certain bacteria—or it may be an artificial process whereby the recipient...

A transformation is a one-to-one function that maps a set of points onto another set of points. The "points" mentioned here may be one-dimensional points on the real number line, two-dimensional points in the plane, three-dimensional points in...

Transformation is a process in which exogenous DNA is taken up by a (recipient) cell, sphaeroplast, or protoplast. In order to take up DNA, the cells must be competent. Competence is a state of bacterial cells during which the usually rigid cell wall...

In molecular biology, transformation is the genetic alteration of a cell resulting from the uptake and expression of foreign genetic material (DNA). Separate terms are used for genetic alterations resulting from introduction of DNA by viruses...

CHICAGO–Barack Obama got out of the car a block early so everyone would see him walk to the picket line. With a gray BlackBerry holstered between black pants and white dress shirt, the candidate immediately inserted himself into the rotating loop of striking hotel workers...

"No sacrifice, no victory".  That's the motto of the Witwicky clan and it is carried out with gusto by every good guy in this popcorn blockbuster, including the very tall, robotic ones. In Transformers, Shia LaBeouf plays Sam Witwicky, a teen who would love to...

Sixty-six-year-old Zulema Hernandez's small home is brightly painted, with a side door opening up to a patio fragrant with potted herbs and flowers. Neighbors wave as they drive by over smooth, paved streets.At a community center in another corner of the county, a volunteer physician...

Not many believe American challenger Ray Austin will take the IBF heavyweight title away from Wladimir Klitschko on Saturday.But Austin's camp is promising to send a different fighter into the ring against the hard-hitting Ukrainian than the one that compiled a mediocre 24-3-4 record with...