Two genes affect mouse coat color. The A\" gene determines pigment production an

Question

Two genes affect mouse coat color. The A" gene determines pigment production and the dominant allele (A) gives color while the recessive allele (al produces no color known as albino. The 'B'" gene determines the pattern of the color where B produces an agouti coat and b leads to a black coat. What is the expected phenotypic ratio that would be observed from a dihybrid cross of two agouti mice? 9 agouti: 3 black: 4 albino 9 agouti: 3 black: 3 albino: 1 white O 12 agouti: 3 black: 1 white 9 agouti: 3 albino: 4 black

Explanation / Answer

What is the expected phenotype ratio that would be observed from a dihybrid cross of two agouti mice?

A) 9 agouti : 3 black : 4 albino

A punnet square for AaBb X AaBb dihybrid cross shows the phenotype 9 : 3 : 4. There are three phenotypes for hair color: agouti, black and albino.

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