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| Motley het Sharp-albino |
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| Salmon-hypo het Caramel-hypo |
In this example we will consider
a test cross between a Motley het Sharp-albino and a Salmon-hypo het Caramel-hypo. This
test cross involves three loci that we will refer to as the Sharp-albino locus, the Salmon-hypo locus, and the Motley locus. The results are worked out in exactly the same manner as with the two-locus test crosses,
with the combinations of alleles at each locus first analyzed independently, and then combined using the statistical calculation
tables.
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| Click on the image to view full size. |
At the Sharp-albino locus, of
the expected 3/4 phenotype Normal offspring, 1/3 will be genotype Normal (NN) and 2/3 will be genotype ParaHet (Nc OR Ns),
and we can therefore say that all of the phenotype Normal offspring will be 66% possible ParaHets.
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The table and the offspring summary
below have been presented separately so that the images can easily be viewed on-screen.
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The test cross
analysis shows that this breeding has the potential to produce not just one, but two completely new morph combinations: the Motley Paradigm and the Motley Paraglow.
And this test cross did not even involve the use of a Paradigm! [09/18/2009 UPDATE:
The first Paradigm Motleys were born at Basically Boas on 09/10/2009]
Continue to "8. Paradigm Motley x Salmon-hypo het Caramel-hypo"
Back to "6. Paradigm x Motley het Sharp-albino"
Back to the "Genetics and Paradigms" Page
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