This changed dramatically with the advent of molecular cloning methods.

Using "yeast artificial chromosomes," or YAC's, allows researchers to transfer 10 times more new genetic material into mouse cells than conventional cloning methods, scientists said.

Molecular cloning methods are central to many areas of modern biology and medicine.

These peaks correspond broadly to libraries generated by non-directional and directional cloning methods, respectively.

The direct cloning method has the distinct advantages of being expression based and aimed at identifying the processed miRNA that is presumably the active regulatory species.

Dr. Bishop said that his company's researchers got the idea for this cloning method in 1992 and had been working on it ever since.

Vegetative propagation is usually considered a cloning method.

Grafting is often not a complete cloning method because sexual seedlings are used as rootstocks.

The cows were created by combining GM techniques with the cloning method used to produce Dolly the sheep.

Cutting is characterized as a cloning method, since the derived plants have identical DNA to the "mother plants".