Albinism a genetic defect. I think most animals can have albino counterparts, it's because the gene that codes for the protein melanin (what gives us our color) is defective.
Glo-Fish = Danios
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Albinism a genetic defect. I think most animals can have albino counterparts, it's because the gene that codes for the protein melanin (what gives us our color) is defective.
You're welcome.
No-one makes the gene defective, it is a naturally occurring mutation. (Actually it's even more complicate because there are several genes that can be involved, but the basic inheritance is the same). A creature that is albino has 2 copies of the defective gene (generally animals have 2 copies of every gene - one from mom and one from dad) so there are no "good" copies, consequently they lack coloring.
If an albino animal mates with a non-albino, it is VERY unlikely that any offspring will be albino, because the non albino parent will always contribute a "good" copy of the gene that will get used before the defective one (the offspring would now be called a carrier of the defective gene).
If an albino animal mates with a carrier there's ~50% chance that the offspring will get 2 copies of the defective gene, so a 50% chance that you'll get albino offspring.
If 2 carriers mate there's a 25% chance of getting an albino offspring.
If 2 albino animals mate there's a 100% chance of albino offspring because between the two of them they only have defective copies of the gene.
So, the trick for getting albino fish is to find a few and begin mating them.
No-one makes the gene defective, it is a naturally occurring mutation. (Actually it's even more complicate because there are several genes that can be involved, but the basic inheritance is the same). A creature that is albino has 2 copies of the defective gene (generally animals have 2 copies of every gene - one from mom and one from dad) so there are no "good" copies, consequently they lack coloring.
If an albino animal mates with a non-albino, it is VERY unlikely that any offspring will be albino, because the non albino parent will always contribute a "good" copy of the gene that will get used before the defective one (the offspring would now be called a carrier of the defective gene).
If an albino animal mates with a carrier there's ~50% chance that the offspring will get 2 copies of the defective gene, so a 50% chance that you'll get albino offspring.
If 2 carriers mate there's a 25% chance of getting an albino offspring.
If 2 albino animals mate there's a 100% chance of albino offspring because between the two of them they only have defective copies of the gene.
So, the trick for getting albino fish is to find a few and begin mating them.
still not as simple as that but yea that works.... like bn plecos you can breed 2 albinos and still get brownies.
Bearded Dragon lizards do not have albino varieties, they have hypomelanastic varieties. They get snowy-white, have clear nails too, but no pink eyes so its not considered albino. To my knowledge no true albino of that species has been seen wild or captive.
Edit note: and a more recent photo hunt for a hypomelanastic beardie shoes that my research is out of date...
I have read though that they die young... believed to be unable to properly absorb UV.
Here is a nice hypo:
if anyone's interested here's a cool page about inheratance of odd traits in beardies.
http://www.mbdragons.eu/en/genetica.html
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Lupin
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Numbers, we have a sticky thread in MFK about the morphs.
http://www.monsterfishkeepers.com/forums/showthread.php?t=38534
http://www.monsterfishkeepers.com/forums/showthread.php?t=38534
Nope - just an example of Mendelian genetics. Not knowing much about color dominance in convicts, I suspect that the gene for the black coloring is dominant. If it turns out the the majority of the sperm that the black convict is producing has the gene for black coloring, all of the offspring from those sperm will be black.
Albinism is specifically a genetic defect in the gene that codes for the melanin protein or a protein that interacts with melanin to produce color as a whole. To my understanding, this is a completely different set of genes from those that determine what specific color will be produced.
Cool - so in this case is the gene that causes them to be albino dominant???? Because to get brownies from 2 albinos they both would have to be carriers of the brownie gene -- or is it even more complicated and related to environment?
