Terms in this set (13)
A technique for separating and purifying macromolecules, either DNAs or proteins.
The separation is based upon of size and electrical charge and measured by their rate of movement through an electrical field in a gel.
A process in which a cell, cell product, or organism is copied from an original source.
The process of selecting a few organisms with desired traits to serve as parents of the next generation
Modification of an organism's genetic composition by artificial mean
Cutting DNA and placing it into another organism
A selective breeding method that involves crossing different individuals to bring together the best traits from both parents. (Example: Mule = donkey + horse)
Uses of gel electrophoresis
To compare different samples of DNA for identification or paternity, to locate a particular gene out of thousands, to determine an organism's DNA sequence, and for crimes.
genetically engineered DNA made by recombining fragments of DNA from different organisms
Scientists have developed the ability to manufacture
hormones, such as human growth hormone, using
bacteria. One benefit of this new technology is that
bacteria are relatively inexpensive and
The cloning of cells involves the process of
mitotic cell division
the process where scientists can replace defective genes with normal ones
One cell divides into two identical daughter cells
A small piece of circular DNA called a plasmid is extracted from the bacteria or yeast cell. A small section is then cut out of the circular plasmid by restriction enzymes, 'molecular scissors'. The gene for human insulin is inserted into the gap in the plasmid. This plasmid is now genetically modified. The more the cells divide, the more insulin is produced