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6.) Another two factor cross in which the two traits are close together on the same chromosome. Again, let's assume that hair color and texture are close together on the same chromosome. As a reminder: Black B, and yellow hair b Wiry hair W, and smooth hair = w You have a heterozygote male, and you know that his dad was homozygous dominant for both traits, and his mom had smooth yellow fur. You are considering breeding this dog with a double homozygous recessive female. What are the possible gamete genotypes for both your dog and the one you are considering mating him with? Dog: BbWw BW Female dog: bhuw bW bw How many offspring (out of 16) would you expect will have smooth yellow fur? BW Bu b 4out of llo 7.) 7. Crossing over Now let's pretend that hair color and hair texture are on the same chromosome, but this time, they are located far enough apart that crossing over can occasionally occur. Black is dominant (B), and yellow hair is recessive (b) Wiry hair is dominant (W), and smooth hair is recessive (w) Let's assume once again that both parents are double heterozygotes for the two traits (BbWw), and the B and W alleles are on one homolog, and b and w are on the other: a. Write down again the possible phenotypes of the children you would expect to see in the case where these two traits were close together on the same chromosome: вU" b. If the traits are a little farther apart, and crossing over occurs, what additional phenotypes would you expect to see? Bw "Bw" "huB "bw" 010 How would you explain a phenotype ratio in the offspring of: 75"BW" : 1"Bw" 1"bW" 5"bw"? (I know that this is a lot of puppies I had to ramp up the numbers to indicate that crossing over is rare!) C. d. Say you encounter a problem on an exam with a cross between two double heterozygotes, and the phenotypes ratios of the offspring are given. Explain how you will determine whether the two traits are on two separate chromosomes or on the same chromosome far apart? 9200 01 nt aco p otiat w n

6.) Another two factor cross in which the two traits are close together on the same chromosome. Again, let's assume that hair color and texture are close together on the same chromosome. As a reminder: Black B, and yellow hair b Wiry hair W, and smooth hair = w You have a heterozygote male, and you know that his dad was homozygous dominant for both traits, and his mom had smooth yellow fur. You are considering breeding this dog with a double homozygous recessive female. What are the possible gamete genotypes for both your dog and the one you are considering mating him with? Dog: BbWw BW Female dog: bhuw bW bw How many offspring (out of 16) would you expect will have smooth yellow fur? BW Bu b 4out of llo 7.) 7. Crossing over Now let's pretend that hair color and hair texture are on the same chromosome, but this time, they are located far enough apart that crossing over can occasionally occur. Black is dominant (B), and yellow hair is recessive (b) Wiry hair is dominant (W), and smooth hair is recessive (w) Let's assume once again that both parents are double heterozygotes for the two traits (BbWw), and the B and W alleles are on one homolog, and b and w are on the other: a. Write down again the possible phenotypes of the children you would expect to see in the case where these two traits were close together on the same chromosome: вU" b. If the traits are a little farther apart, and crossing over occurs, what additional phenotypes would you expect to see? Bw "Bw" "huB "bw" 010 How would you explain a phenotype ratio in the offspring of: 75"BW" : 1"Bw" 1"bW" 5"bw"? (I know that this is a lot of puppies I had to ramp up the numbers to indicate that crossing over is rare!) C. d. Say you encounter a problem on an exam with a cross between two double heterozygotes, and the phenotypes ratios of the offspring are given. Explain how you will determine whether the two traits are on two separate chromosomes or on the same chromosome far apart? 9200 01 nt aco p otiat w n

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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please answer questions 7 a, b, and c. 

6.) Another two factor cross in which the two traits are close together on the same chromosome. Again, let's assume that hair color and texture are close together on the same chromosome. As a reminder: Black B, and yellow hair b Wiry hair W, and smooth hair = w You have a heterozygote male, and you know that his dad was homozygous dominant for both traits, and his mom had smooth yellow fur. You are considering breeding this dog with a double homozygous recessive female. What are the possible gamete genotypes for both your dog and the one you are considering mating him with? Dog: BbWw BW Female dog: bhuw bW bw How many offspring (out of 16) would you expect will have smooth yellow fur? BW Bu b 4out of llo 7.) 7. Crossing over Now let's pretend that hair color and hair texture are on the same chromosome, but this time, they are located far enough apart that crossing over can occasionally occur. Black is dominant (B), and yellow hair is recessive (b) Wiry hair is dominant (W), and smooth hair is recessive (w) Let's assume once again that both parents are double heterozygotes for the two traits (BbWw), and the B and W alleles are on one homolog, and b and w are on the other: a. Write down again the possible phenotypes of the children you would expect to see in the case where these two traits were close together on the same chromosome: вU" b. If the traits are a little farther apart, and crossing over occurs, what additional phenotypes would you expect to see? Bw "Bw" "huB "bw"
Transcribed Image Text:6.) Another two factor cross in which the two traits are close together on the same chromosome. Again, let's assume that hair color and texture are close together on the same chromosome. As a reminder: Black B, and yellow hair b Wiry hair W, and smooth hair = w You have a heterozygote male, and you know that his dad was homozygous dominant for both traits, and his mom had smooth yellow fur. You are considering breeding this dog with a double homozygous recessive female. What are the possible gamete genotypes for both your dog and the one you are considering mating him with? Dog: BbWw BW Female dog: bhuw bW bw How many offspring (out of 16) would you expect will have smooth yellow fur? BW Bu b 4out of llo 7.) 7. Crossing over Now let's pretend that hair color and hair texture are on the same chromosome, but this time, they are located far enough apart that crossing over can occasionally occur. Black is dominant (B), and yellow hair is recessive (b) Wiry hair is dominant (W), and smooth hair is recessive (w) Let's assume once again that both parents are double heterozygotes for the two traits (BbWw), and the B and W alleles are on one homolog, and b and w are on the other: a. Write down again the possible phenotypes of the children you would expect to see in the case where these two traits were close together on the same chromosome: вU" b. If the traits are a little farther apart, and crossing over occurs, what additional phenotypes would you expect to see? Bw "Bw" "huB "bw"
010 How would you explain a phenotype ratio in the offspring of: 75"BW" : 1"Bw" 1"bW" 5"bw"? (I know that this is a lot of puppies I had to ramp up the numbers to indicate that crossing over is rare!) C. d. Say you encounter a problem on an exam with a cross between two double heterozygotes, and the phenotypes ratios of the offspring are given. Explain how you will determine whether the two traits are on two separate chromosomes or on the same chromosome far apart? 9200 01 nt aco p otiat w n
Transcribed Image Text:010 How would you explain a phenotype ratio in the offspring of: 75"BW" : 1"Bw" 1"bW" 5"bw"? (I know that this is a lot of puppies I had to ramp up the numbers to indicate that crossing over is rare!) C. d. Say you encounter a problem on an exam with a cross between two double heterozygotes, and the phenotypes ratios of the offspring are given. Explain how you will determine whether the two traits are on two separate chromosomes or on the same chromosome far apart? 9200 01 nt aco p otiat w n
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