When true breeding mice with brown fur and short tails BBtt were crossed to true...
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When true breeding mice with brown fur and short tails BBtt were crossed to true breeding mice with white fur and long talls bbTT all the F offspring had brown fur and long tails The F offspring were then crossed to mice with white fur and short tails bbtt The fur gene and the tail length gene are 7 cM apart Part 1 Which of the following F offspring are recombinant Select ALL that apply Hint Draw the chromosome arrangements for all three generations Brown fur long tail Brown fur short tail White fur long tail White fur short tail You need more information to answer this question Incorrect There is enough information to answer this question Notice that one of the P generation had brown fur and short tails BBtt and the other had white fur and long tails bbTT That means the F1 was BubT Therefore what type of F2 would show a new combination of traits compared to the F1 Part 2 Using the information given in Part 1 if there were 400 mice in the F generation how many do you expect would have white fur and long tails 372 O 186 75 28 25 O 14 x
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