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This imply that also from two normal specimen, but
both carriers of an albino allele (heterozygotes), may
born albino specimen. In this case the probability (respected
only in great number) will be 1 albino (25%), 2 heterozygotes
(50%) and one normal homozygote (both normal alleles)
for each 4 born (25%).
In case in which an heterozygote for albino gene cross
with a recessive homozygote albino, the probability
that born albinos is 1 out of 2 little (50%). Specimen
of normal pigment will be in its turn heterozygotes
(carriers) for unexpressed albino gene because recessive.
If an albino couple with an albino gene's no carrier
specimen all born specimen will be carrier of the mutated
gene (hetrozygotes), but they will have normal pigment.
Are available warrant
specimen hetrozygotes (ask more info)
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Testudo marginata heterozygote
Testudo albina and Testudo standard bottom view |
