Biology, 20.02.2020 20:03 georgesarkes12
The coat color in mink is controlled by two codominant alleles at a single locus. Red coat color is produced by the genotype R1 R1, silver coat by the genotype R1 R2, and platinum color by R2 R2. White spotting of the coat is a recessive trait found with the genotype ss. Solid coat color is found with the S - genotype.
a. What are the expected progeny phenotypes for the cross Ss R1 R2 x ss R2 R2
b. If the cross SsR1R2 x SsR1R1 is made, what are the progeny phenotypes and in what proportions are they expected to occur?
c. Two crosses are made between mink. Cross 1 is the cross of a solid, silver mink to one that is solid, platinum. Cross 2 is between a spotted, silver mink and one that is solid, silver. The progeny are described in the table below. Use these data to determine the genotypes of the parents in each cross.
cross spotted, platinum spotted, silver spotted, red solid, platinum solid, silver solid, red
1 2 3 0 6 5 0
2 3 7 2 4 5 3
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The coat color in mink is controlled by two codominant alleles at a single locus. Red coat color is...
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