In mice, agouti fur is a dominant trait resulting in individual hairs having a l

Question

In mice, agouti fur is a dominant trait resulting in individual hairs having a light band of pigment on an otherwise dark hair shaft. A mouse with agouti fur is shown here, along with a mouse with solid color fur, which is the recessive phenotype (A = agouti; a = solid color).

A separate gene, which is not linked to the agouti gene, can result in either a dominant black pigment or a recessive brown pigment (B = black; b = brown).

A third unlinked gene (gene C/c) also has an epistatic effect on fur color. The presence of the dominant allele C (for color), allows the A/a and B/b genes to be expressed normally. The presence of two recessive alleles (cc), on the other hand, prevents any pigment from being formed, resulting in an albino (white) mouse.

Match the phenotypes on the left to the genotypes listed on the right.

solid color, black

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agouti black

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albino

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AaBbcc

AAbbCc

aaBBCC

aabbCC

AaBBCC

solid color, black

Choose...AaBbccAAbbCcaaBBCCaabbCCAaBBCC

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agouti black

Choose...AaBbccAAbbCcaaBBCCaabbCCAaBBCC

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albino

Choose...AaBbccAAbbCcaaBBCCaabbCCAaBBCC

Drag answer here

In mice, agouti fur is a dominant trait resulting in individual hairs having a light band of pigment on an otherwise dark hair shaft. A mouse with agouti fur is shown here, along with a mouse with solid color fur, which is the recessive phenotype (A = agouti; a = solid color). Match the phenotypes on the left to the genotypes listed on the right. solid color, black Choose...AaBbccAAbbCcaaBBCCaabbCCAaBBCC Drag answer here agouti black Choose...AaBbccAAbbCcaaBBCCaabbCCAaBBCC Drag answer here albino Choose...AaBbccAAbbCcaaBBCCaabbCCAaBBCC Drag answer here AaBbcc AAbbCc aaBBCC aabbCC AaBBCC A third unlinked gene (gene C/c) also has an epistatic effect on fur color. The presence of the dominant allele C (for color), allows the A/a and B/b genes to be expressed normally. The presence of two recessive alleles (cc), on the other hand, prevents any pigment from being formed, resulting in an albino (white) mouse. A separate gene, which is not linked to the agouti gene, can result in either a dominant black pigment or a recessive brown pigment (B = black; b = brown).

Explanation / Answer

Solid colour , black: aaBBCC

agouti black: AaBBCC

albino: AaBbcc

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