Genetic Engineering and Recombinant DNA Technology
A gene from the virus which encodes a protein in the virus’ outer coat is copied into the plant’s DNA. The plants then makes the coat protein, which is harmless, but which stimulates the plant’s natural defenses.
Recently, cultivated Hawaiian papayas were hit by a devastating virus which essentially eradicated the commercial variety. Only the transgenic papayas survived. If you like papaya, you can only buy the transgenic variety. Nobody can grow any other kind.
Transgenic mice with human growth hormone
Transgenic Mice that glow in the dark – asthma research
Zebra fish that glow in the dark – a sea coral gene is placed in the fish
Transgenic goats engineered to produce antithrombin protein in their milk – for people that have rare blood clotting disorders
The Benefits of Genetic Engineering
Crops with herbicide resistance
Crops with virus resistance
Crops that are drought tolerant
Control the ripening of fruits
Crops with increased nutrition
Milk production in cows
What are the potential problems with genetic engineering?