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Posted by Elaine T on August 23, 2005, 3:07 pm
Please log in for more thread options Ed VanDyke wrote:
>
>>See my post on the other newsgroup,, Firstly Any albino, is colourless,
>>there is zero pigmentation, the eye's are PINK, not red. All Albino's are
>>poor sighted, and normally infertile
>> Real Albino's are also extremely rare, and don't let people tell you ,
>>they can breed Albino, that's total crap. The Albino genie is recessive.
>>
>>bassett
>
>
>
>
> wouldn't that mean if you bred two (abnormally fertile), albinos that their
> offspring would be albino, since both parents carry the recessive gene only
> the recessive gene would be passed on.
>
>
Yes, two albinos can produce 100% albino offspring. However, there is
more than genetic defect that can produce the albino phenotype so the
two albino animals must have the same defective gene to produce albino
offspring. The fertility and health of the albino animal depends on
which gene is nonfunctional and plenty of albinos are fertile.
Otherwise, how would we have pink-eyed white rabbits, rats, and mice,
and albino fish of many species in pet stores worldwide?
It is typical to take an albino animal and cross it to a normal animal
to produce normal looking heterozygous offspring (they have one
wild-type gene and one albino gene). The heterozygotes will produce 25%
albinos when crossed, and those albinos will breed true. This sort of
line breeding has been done most often in rodents and fish and is rather
easy. I've done it with gold guppies (another recessive) for many years.
--
Elaine T __
http://eethomp.com/fish.html <'__><
rec.aquaria.* FAQ http://faq.thekrib.com
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Posted by bassett on August 24, 2005, 6:49 am
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If both carry recessive genes, One would assume that the dominate side would
come from some form of throwback. You might also find that only the males
are Albino, and the females are normal, but carrying the Albino genes and
being split to Albino. Putting these splits back to a albino male, could
produce the same . Male albino ,female split to Albino. But like all
things, Its hypothetical.
Of cause you could "line breed" for 5 generations to see what was hidden..
Interesting concept.
A bit like superannuation, you know it's there, but are having trouble
collecting it.
bassett
>
>> See my post on the other newsgroup,, Firstly Any albino, is colourless,
>> there is zero pigmentation, the eye's are PINK, not red. All Albino's
>> are
>> poor sighted, and normally infertile
>> Real Albino's are also extremely rare, and don't let people tell you
>> ,
>> they can breed Albino, that's total crap. The Albino genie is recessive.
>>
>> bassett
>
>
>
> wouldn't that mean if you bred two (abnormally fertile), albinos that
> their offspring would be albino, since both parents carry the recessive
> gene only the recessive gene would be passed on.
>
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