In Mice, Black Coat Color Is Dominant to White Coat

question 39

Multiple Choice

In mice, black coat color is dominant to white coat color. In the pedigree below, mice with a black coat are represented by darkened symbols, and those with white coats are shown as open symbols. What is the genotype of III- 1?

• A) heterozygous or homozygous recessive
• B) heterozygous
• C) homozygous recessive
• D) homozygous dominant
• E) homozygous dominant or heterozygous

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Definitions:

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