Genetic Engineering Overview
Genetic Engineering Definition
- Direct manipulation of DNA to alter an organism's characteristics.
- Resulting organisms are referred to as genetically modified organisms (GMOs).
Recombinant DNA Technology
- Another term for genetic engineering.
- Allows for the isolation and insertion of specific genes into another organism's genome.
Stages Involved in Genetic Engineering
- Isolation
- Identify and isolate the desired gene from the source organism using restriction enzymes.
- Selection of Vector
- Choose an appropriate vector (e.g., plasmid) to propagate the recombinant DNA.
- Ligation
- Cleave DNA and vectors to facilitate the insertion of the gene of interest.
- Transfer
- Transfer the recombinant plasmid into a host cell for replication.
Examples of GMOs
- Not specified in the content, but commonly known types include genetically modified crops (e.g., Bt corn) and cloned animals (e.g., Dolly the sheep).
Applications of Genetic Engineering
- Crop Improvement
- Enhancements include resistance to pests, herbicides, and environmental stressors.
- Medicine
- Involves production of biopharmaceuticals like antibiotics, hormones, and vaccines using organisms (commonly bacteria) for scaling up.
- Industrial Applications
- Production of commercial chemical compounds, improved fermentation processes, and waste protein production.
Conclusion
- Genetic engineering has transformative potential across agriculture, medicine, and industry.