Black Fur in Mice (B)is Dominant to Brown Fur (B)

question 38

Multiple Choice

Black fur in mice (B) is dominant to brown fur (b) . Short tails (T) are dominant to long tails (t) . What fraction of the progeny of crosses BbTt × BBtt will be expected to have black fur and long tails?

• A) 1/16
• B) 3/16
• C) 3/8
• D) 1/2
• E) 9/16

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