In rabbits, the homozygous genotype LCLC has normal legs, LCLc results in deformed legs, and LcLc results in very short legs. The genotype FBFB produces black fur, FBFb brown fur, and FbFb white fur. If a cross is made between brown rabbits with deformed legs and white rabbits with deformed legs, what percentage of the offspring would be expected to have deformed legs and white fur?

Question

Mohammad

Biology

8 February, 03:12

In rabbits, the homozygous genotype LCLC has normal legs, LCLc results in deformed legs, and LcLc results in very short legs. The genotype FBFB produces black fur, FBFb brown fur, and FbFb white fur. If a cross is made between brown rabbits with deformed legs and white rabbits with deformed legs, what percentage of the offspring would be expected to have deformed legs and white fur?

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Answers (1)

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Allyson Combs · Answer 1

25%

Explanation:

Parent 1: Brown rabbits with deformed legs = FBFbLCLc

Parent 2: White rabbits with deformed legs = FbFbLCLc

FBFbLCLc X FbFbLCLc:

Probability of white fur:

FB Fb

Fb FBFb FbFb

Fb FBFb FbFb

So probability of white fur is 1/2

Probability of deformed legs:

LC Lc

LC LCLC LCLc

Lc LCLc LcLc

So probability of deformed legs is 1/2

Probability of white fur and deformed legs = 1/2 * 1/2 = 1/4 = 25%