In Horses,black Coat Color Is Influenced by the Dominant Allele

question 43

Multiple Choice

In horses,black coat color is influenced by the dominant allele (B) ,and chestnut coat color is influenced by the recessive allele (b) .Trotting gait is due to a dominant gene (T) ,pacing gait to the recessive allele (t) .If a homozygous black trotter is crossed to a chestnut pacer,which phenotype will be the most common in the F2 generation?  

• A) Black pacer
• B) Black trotter
• C) Chestnut trotter
• D) Chestnut pacer
• E) Both black and chestnut pacers

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