Bioremediation: genetically engineered or genetically recombined cells are provided with
specific genes whose products will break down toxic pollutants, clean up waste materials,
or degrade oil spills in an attempt to return the envi
Transformation Is the Uptake and Expression of DNA in a Recipient Cell
Transformation is the uptake of a free DNA fragment from the surrounding environment
and the expression of the genetic information in the recipient cell; that is, b integration of
Transduction Involve Viruses as Agents for Horizontal Transfer of DNA
Another form of genetic combination was reported in 1952 by Joshua Lederberg and Norton
Transduction is the third form of HGT and it requires a virus to carry a chromosomal DNA
Segments of Human Genome May Have Microbial Ancestors
Some comparisons indicate as many as 200 of our 25,000 genes are essentially identical
to those found in members of the Bacteria.
Another discovery from the human genome project indicates that only abo
Genetic Engineering and Biotechnology
The use of microbial genetics, including the isolation, manipulation, and control of gene
expression had far-reaching ramifications, leading to the entirely new field of genetic
Many of the products deriv
Genetic engineering involves the manipulating of genes in organisms or between
organisms in order to introduce new characteristics into the recipient to either produce a
useful product or to actually generate genetically modified organisms (GMO).
DNA Probes Can Identify a Cloned Gene or DNA Segment
DNA probes: single-stranded DNA molecules that recognize and bind to a distinctive and
unique nucleotide sequence of a pathogen.
To use a DNA probe effectively it is valuable to increase the amount of D
Conjugation Involves Cell-to-Cell Contact for Horizontal Gene Transfer
Conjugation two live bacterial cells come together and the donor cell directly transfers
DNA to the recipient cell.
First observed by Joshua Lederberg and Edward Tatum in a series of e
Relatively new and emerging area in microbiology called microbial forensics, the discipline that
attempts to recognize patterns in a disease outbreak, identify the responsible pathogen, control
the pathogens spread, and discover the so
Conjugation Also Can Transfer Chromosomal DNA
Bacterial species can also undergo a type of conjugation that accounts for the horizontal
transfer of chromosomal material from donor to recipient cell.
Cells exhibiting the ability to donate chromosomal genes