Bananas have emerged as the best candidate to deliver a bite-sized vaccine for hepatitis B virus to millions of people. It has been found that plant-based production of an oral hepatitis B vaccine has economic and many other advantages over the existing injectable vaccine. Hepatitis B is certainly very dangerous with 350 million carriers of hepatitis b worldwide. So scientists are putting a lot of effort to develop these vaccinated bananas for getting rid of hepatitis B.
Cherokee purple is the name of a cultivar of tomato that develops a fruit with a dark mahagony-red color while maintaining a greenish hue near the stem when they have matured for eating. They are also notable for having a dense, juicy texture, with small seed locules irregularly scattered throughout the flesh. The comparatively dark interior color is enhanced by the tendency of the seeds to be surrounded by green gel.
Scientists are working to genetically engineer the smell out of pigs by altering their DNA. These mutated products are better known as the Enviropig or Frankenswine. Scientists have combined E.coli bacteria and mouse DNA to inject into the pregnant pig’s foetus. Trials revealed that both the E.coli bacteria and mouse DNA were not only successfully incorporated into pig genome but also inherited by genetically engineered pig offspring.
Scientists have recently taken the gene that programs poison in scorpion tails and tried finding out ways to combine it with cabbage. In order to limit pesticide use by preventing caterpillars from damaging the cabbage crops. These genetically modified cabbages generally produce scorpion poison that kills caterpillars when they bite the leaves, but the toxins are modified in such a manner that they are not harmful for humans.
Square Watermelons are watermelons grown into the shape of a cube. Square watermelons were intended to fit more compactly in refrigerators and be able to cut more easily. The melons are grown in boxes and it is assumed that it would take the shape of the container. These melons are very much popular in Japan and its price is much more than the normal ones. So this goes well with the rich class of people who buy it for ornamental or decorative purpose.
The GloFish is a patented and trademarked brand of genetically modified fluorescent fish. In 1999 Dr. Zhiyuan Gong and his colleagues were working with a gene that encodes the green fluorescent protein originally extracted from a jellyfish that naturally produced bright green fluorescence. They inserted the gene into a zebrafish embryo, allowing it to integrate into zebrafish’s genome which allowed the fish to be brightly fluroscent under both natural white light and ultraviolet light.
Humanized Cow Milk
Chinese researchers were the first to make headlines by developing the genetically modified humanized cow milk. The scientists inserted a human gene into the cows’ genetic information, and the animals’ mammary glands now produce milk with large quantities of lysozyme, a protein abundant in human milk. The introduction lysozyme makes the milk much healthier and more nutritious.
Flavr Savr Tomatoes
Flavr Savr, a genetically modified tomato was first commercially grown genetically engineered food to be granted a license for human consumption. Calgene hoped that through genetic engineering he can slow down the ripening process of the tomato and thus prevent it from softening, while still allowing the tomato to retain its colour and flavour. The tomato was made more resistant to rotting by addition of an antisense gene which interferes with the production of enzyme “polygalacturonase”.
Research is being done to produce genetically modified plants that will help in fighting pollution. The idea behind the experiment is that the plants will absorb the chemicals and help in reducing the pollution by breaking down the contaminants and releasing them into air.