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Incomplete Dominance Biology Question?

Genetics as it applies to evolution, molecular biology, and medical aspects.

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Incomplete Dominance Biology Question?

Postby OnePieceKnight » Fri Mar 16, 2012 1:31 am

Hey guys...

The palomino horse results from the combination of two incompletely dominant genes, one codes for the colour chestnut and the other for cream. Determine the expected genotypic and phenotypic ratios for the following crosses:

a.)chestnut and cream
b.)palomino and cream
c.) palomino and palomino
d.) cream and cream


Please this is the only question I didn't understand for my homework.. However I got 100% for both phenotype and genotype for all options... Please correct me if I'm wrong.
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Postby Darby » Sun Mar 18, 2012 2:48 pm

Assume the palomino is heterozygous and the others...aren't.
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Postby animartco » Mon Apr 23, 2012 6:53 pm

Hi Onepiece Knight.
Er I suppose this is just an exercise? But if it's for real I would suggest that chestnut is a much commoner colour than cream which is a really recessive gene. Also there are chestnut palaminos and paler ones. i would think 1st cross =chestnut palamino 2nd pale P. 3rd chestnut offspring and 4th cream offspring.
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