There Are Nine Coat Colors Known in Foxes

question 18

Essay

There are nine coat colors known in foxes.If a red fox were crossed with a double-black fox, all the hybrids would be red above and black below in a pattern known as blended cross.If two blended crosses were mated, the F₂ ratio would be as follows: 1 red, 2 smoky red, 2 cross red, 4 blended cross, 1 standard silver, 2 substandard silver, 1 Alaskan silver, 2 sub-Alaskan silver, and 1 double black.
(a)
Using the letters A/a and B/b to serve as the genes for these animals, develop a genotype for each variety listed.
(b)
Two crosses will produce all blended-cross offspring.One is used above (red fox * double black); what is the other?
(c)
List the genotype and phenotype of all the pure-breeding foxes.
(d)
Give the genotypic and phenotypic ratio of a cross between two substandard silvers.
(e)
Give the genotype and phenotype of the offspring produced in a cross of a sub-Alaskan silver and a cross red.

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