Presentation2 - 1. A man with blue eyes marries a...

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1. A man with blue eyes marries a brown-eyed woman whose mother had blue eyes. What proportion of the children would be expected to have blue eyes?
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1. A man with blue eyes marries a brown-eyed woman whose mother had blue eyes. What proportion of the children would be expected to have blue eyes? Answer: One-half.
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2. A brown-eyed man maries a blue-eyed woman. The first child is blue-eyed. What is the man’s genotype?
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2. A brown-eyed man maries a blue-eyed woman. The first child is blue-eyed. What is the man’s genotype? Answer: Heterozygous Bb
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3. Which is more likely, two brown-eyed parents producing a blue-eyed child or two blue-eyed parents producing a brown-eyed child?
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3. Which is more likely, two brown-eyed parents producing a blue-eyed child or two blue-eyed parents producing a brown-eyed child? Answer: Two brown-eyed parents producing a blue-eyed child.
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4. A brown-eyed man marries a blue-eyed woman and they have eight children, all with brown eyes. A) Can you be sure whether the man is homozygous or heterozygous? B) Which is more likely? C) If the ninth child is blue-eyed, will that change your answer?
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4. A brown-eyed man marries a blue-eyed woman and they have eight children, all with brown eyes. A) Can you be sure whether the man is homozygous or heterozygous? No. B) Which is more likely? Homozygous. C) If the ninth child is blue-eyed, will that change your answer? Absolutely!!
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5. What offspring would be expected from a mating between (A) a roan cow ( Rrbb ) with a roan bull ( Rrbb ) (B) a roan with a white bull ( rrbb ) (C) a red cow ( RRbb ) with a white bull?
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5. What offspring would be expected from a mating between
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This note was uploaded on 02/26/2012 for the course AGRY 320 taught by Professor Stewert during the Spring '09 term at Purdue University-West Lafayette.

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Presentation2 - 1. A man with blue eyes marries a...

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