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Abstract
Staphylococci are spherical Gram-positive bacteria, which are immobile and form grape-like clusters. Staphylococci are facultative anaerobes. There are two different types of colonies formed. Those formed by S. aureus are yellow and become rather large on a rich medium, while those of S.epidermidis are white and form relatively small colonies, even on a rich medium. Strains of Staphylococcus resistant to our most powerful antibiotics have increased pressure on researchers to find alternative, more effective ways of fighting Staphylococcus.This study aimed to investigate the potential of gene transfer among human isolates of Staphylococcus species bacteria. Two different mechanisms of transfer, transduction and conjugation have been employed in this study. The factors controlling the mechanism of transfer have been also studied. The molecular differences among these isolates have been carried out using RAPD-PCR technique.