By: Damini Padhiar
WHAT IS GMO?
WHAT IS A GLOFISH?
A Glofish is a fluorescent fish. Glofish were first introduced in the late 2003 (Glofish, 2015). They are sold at petsmart so people can buy them as house pets. Glofishs are known for their unique glow in the dark colours. The idea of a Glofish came in 1999, when the scientists wanted to make a fish to help detect enviornmental pollutants. They come in many different colours such as red, blue, orange, yellow, pink, green and many more. They were oraginally called "Zebrafish". Zebrafishes were usually black and white with strips.
In stores they are sold for 6-7 dollars and they can live up to 3-5 years. The more aggresive ones that tend to need at least 5 fishes with them to feel safe are the electric green glofish.
HOW ARE GLOFISHES GENETICALLY MODIFIED?
The Glofish is modified with the fluorescent protein gene, the scientist insert the gene into the fishes embryo which causes the fishs to glow (Leone, Quinton). The scientists also use something called the recombinant DNA. Recombinant DNA is something uses differnt organisms and combins their DNA's together. As in the Glofish; when the fish is still in the egg, it is infused with a gene from a jellyfish, sea coral, or sea anemones. They also use something called the restriction enzyme. Restriction enzyme is basically enzyme that is a bacteria, that can cut off some DNA. In a Glofish the restriction enzyme is used to cut a specific gene they need to make the fish modified. The scientist also need a host organism, which is basically an organism that contains parasite, like in the Glofish the host organaism (they get the gene from) is the jellyfish or the sea coral. To transfer the genetic material, in the Glofish they use something called the "vector" (plasmid) which is a circular DNA molecule. (Leone,2013).
Before Glofishs were invented they were called "zebrafish". They were black and white with strips.
These are how Glofishes look :)
Zebrafish --> Glofish
This image shows how a zebrafish turns into a Glofish :D
THE ADVATAGES OF A GLOFISH
- Cancer therapy
- Peaceful and no harm
- Increase in fish market (was 2-3 dollars, after modified 6-7 dollars)
- Step forward in technology
- Helps to have light in the room
- Tells the scientist when the water is polluted
- Produce fluorescent offspring
- The glow doesnt wear out
(L. Paul MacInnis, 2015).
DISADVANTAGES (RISKS) OF A GLOFISH
- Disturbance of genetic information
- Can't eat them
- Europe, Canada, and Australia banned them because they are genetically modified
- Unknown long term effects
- Unknown health effects
- Risk of misuse
- Can't survive in the wild and cold water
- Unknown effects on Zebrafish
- Zebrafish have troble breeding because they are tropical fish
- Risk exploitation
(L. Paul MacInnis, 2015).
- L. Paul MacInnis (2015). Kids Right To Know. http://www.kidsrighttoknow.com/gmos/. Retrieved: Sept. 6,2015.
- Wikipedia (2015). Glofish. https://en.wikipedia.org/wiki/GloFish. Retrieved: Sept. 6,2015.
- Leone, Quinton (2013). GMO Glofish. http://glofishs.blogspot.ca/. Retrieved: Sept. 6,2015.
- Google image. Glofish. https://www.google.ca/search?q=zebrafish+and+goldfish&biw=1301&bih=641&source=lnms&tbm=isch&sa=X&ved=0CAYQ_AUoAWoVChMI3tWCvK-7yAIVSII-Ch0U_wN9#tbm=isch&q=glofish. Retrieved: Sept. 6,2015.
- First one: YouTube (2013). GloFish® Fluorescent Fish Video! (Includes our new GloFish Tetras!). https://www.youtube.com/watch?v=RmHnKfTLgNw Retrieved: Sept. 6,2015.
- second one: YouTube (2013). LHN - Alcalde - Glo-fish. https://www.youtube.com/watch?v=aRk7FNOleJQ Retrieved: Sept. 6,2015.