In guinea pigs, white coat (b) is recessive to black coat (b*) and wavy hair (s)...

 

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In guinea pigs, white coat (b) is recessive to black coat (b*) and wavy hair (s) is recessive to straight hair (s*). A breeder crosses a guinea pig with white coat and wavy hair with a guinea pig that is homozygous for black coat with straight hair. The F1 are then crossed with guinea pigs having white coats and wavy hair. The following progeny are produced from the testcross: Black, straight 30 Black, wavy 10 White, straight 12 White, wavy 31 Total #: 83 a. Are these two genes linked or not? Explain your answer in detail here. (10 points) b. If you find that they are linked, what is the recombination frequency between them? If you find that they aren't linked, how much recombination is there? (5 points) In guinea pigs, white coat (b) is recessive to black coat (b*) and wavy hair (s) is recessive to straight hair (s*). A breeder crosses a guinea pig with white coat and wavy hair with a guinea pig that is homozygous for black coat with straight hair. The F1 are then crossed with guinea pigs having white coats and wavy hair. The following progeny are produced from the testcross: Black, straight 30 Black, wavy 10 White, straight 12 White, wavy 31 Total #: 83 a. Are these two genes linked or not? Explain your answer in detail here. (10 points) b. If you find that they are linked, what is the recombination frequency between them? If you find that they aren't linked, how much recombination is there? (5 points)

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