BSC 2010 Chapter 13: Chapter 13 Biotechnology

72 views8 pages

Document Summary

Concept 13. 1 recombinant dna can be made in the laboratory. Biotechnology began with the use of organisms with genetic capabilities that occur in nature. It has become possible to genetically modify organisms with genes from other, distantly related organisms, to create new combinations of genes that would not otherwise occur in the same cell. Uses recombinant dna (a single dna molecule containing dna sequences from two or more sources) Three key tools were and still are widely used: Restriction enzymes for cutting dna into pieces (fragments) that can be manipulated. Gel electrophoresis for the analysis and purification of dna fragments. Dna ligase for joining dna fragments together in novel combinations. Some bacteria defend themselves against invasions by producing restriction enzymes which cut double stranded dna molecules into smaller, noninfectious fragments. These enzymes break the bonds of the dna backbone between the 3" hydroxyl of one nucleotide and the 5" phosphate group of the next nucleotide.

Get access

Grade+20% off
$8 USD/m$10 USD/m
Billed $96 USD annually
Grade+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
40 Verified Answers
Class+
$8 USD/m
Billed $96 USD annually
Class+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
30 Verified Answers

Related Documents