Aresearcher is studying coat color in mice. wild-type fur in mice is brown. three pure-breeding strains of mice with white fur have been isolated: milky, blanc, and weiss. white fur is a recessive trait in each strain. these mice are crossed to each other in pairs and the progeny phenotypes are recorded. milky x blanc = all white progeny milky x weiss = all brown progeny blanc x weiss = all brown progeny what conclusion is consistent with these results?

The best answer to the question: What conclusion is consistent with these results, would be: That while in the milky and weiss the mutation occurs in the same gene, in blanc that same mutation appears in a different gene.

Explanation:

What an organism expresses on the outside comes from a blueprint that lies on its inside, meaning its genetic configuration. When there is a crossing of genes, we must remember that in order for them not just to combine, but also to be expressed phenotypically, we need a series of conditions. One such condition is, of course, whether a gene is dominant or recessive, how these are combined, and also, the distance, or closeness, between two genes of the same type, and which express a similar, or a dominant, characteristic.

In the case of these mice, the recessive trait would be white fur for each of the strains: blanc, milky and weiss. We also know that the wild-type fur characteristic of mice is the color brown. However, when crossed, the only combination that produced the recessive white fur, was the milky and blanc combination, with a pure white progeny. The others, all expressed the brown color in their fur. The reason comes from where the mutation in the genetic combination of the chromosomes lies and which will affect how that gene is expressed, and whether it will be expressed in any, or all, the progeny. In this case, the distance of the mutation in each of the crosses ensured that one group only, could inherit the recessive white fur.

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