04-06-2011, 11:46 PM
| || |
Originally Posted by aura09
is that what they do to the glo-fish? i think they are zebra danios are they not?? lol but ive never seen them do it to these tho .. i dont know much about it but i think it gets passed down genectically and when they die they ooze the colours out kinda nasty?? lol i have no idea.
Glofish are genetically modified animals. The had a fluorescent gene from a jelly fish inserted into their DNA. The strain for the aquarium causes the skin cells to be fluorescent. They are "normal zebra danios" except for this gene. This exact same process is used extensively in biological research. The gene used can make what ever part of the fish you want to glow if you insert it into the DNA correctly. A laboratory zebra daino may have the same gene, but look just like a normal zebra danio because that gene is instead set attached to, for example, white blood cells or nerve cells, so only those cells fluoresce.
Above is a video of a zebra danio embryo. Two fluorescent genes are used the blood cells are red and the blood vesicles are green. Its used to study development normally. Take a growing zebra danio egg with this gene and place it under a microscope and shine black light on it and you can watch exactly how the nervous system develops for example. The gene, like any, is definitely inheritable. Most Glofish are raised exactly the same as any normal zebra danio. When they breed the offspring will have the same colors.
I'm suddenly at a loss on why videos instantly embed when i try to hotlink them :S
Last edited by Mikaila31; 04-06-2011 at 11:49 PM..