Black fur in mice (B) is dominant to brown fur (b). Short tails (T) are dominant...

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Black fur in mice (B) is dominant to brown fur (b). Short tails (T) are dominant...

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

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Answer 1

Answer #1

BbTt will form BT, Bt, bT and bt gametes

BBtt will form Bt gamete

so the progeny will be:

BBTt: black fur, short tail

BBtt: black fur, long tail

BbTt: black fur, short tail

Bbtt: black fur, long tail

so, 50% progeny has black fur, log tail

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Answer 2

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