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Polygenic Inheritance: Cat Coat Color Read about the inheritance of cat coat color In each cat below, predict the phenotype of each genotype and color in each cat! Make sure you indicate whether each cat is male or female One gene that affects coat color in cats is an x linked gene we'll call the pigment gene. One allele causes black fur (X) and one allele gives the cat orange fur (X®). These alleles act in a codominant manner, because when a cat has two different alleles (XX), the cat has a pattern called tortoise shell, where the cat has both orange and black hairs. The Y chromosome does not have this coat color gene There is another gene that affects coat color in cats called the piebalding gene. This gene is on an autosomal chromosome and the alleles affect the amount of white patches that appear in the cat's coat. Some cats (ss) have no white patches and their other colors are blended, not patchy. Some cats (SS or Ss) have white patches and their other colors are also patchy. Tortoise shell cats with patches are called calico. Tortoise Shell 9 Calico ? XY sS XoY Ss XBY ss XBY Ss L Phenotype 2. Phenotype: 3. Phenotype X4. Phenotype XBX ss XEXB Ss XX Ss 7. Phenotype 8. Phenotype 5. Phenotype 6. Phenotype

Polygenic Inheritance: Cat Coat Color Read about the inheritance of cat coat color In each cat below, predict the phenotype of each genotype and color in each cat! Make sure you indicate whether each cat is male or female One gene that affects coat color in cats is an x linked gene we'll call the pigment gene. One allele causes black fur (X) and one allele gives the cat orange fur (X®). These alleles act in a codominant manner, because when a cat has two different alleles (XX), the cat has a pattern called tortoise shell, where the cat has both orange and black hairs. The Y chromosome does not have this coat color gene There is another gene that affects coat color in cats called the piebalding gene. This gene is on an autosomal chromosome and the alleles affect the amount of white patches that appear in the cat's coat. Some cats (ss) have no white patches and their other colors are blended, not patchy. Some cats (SS or Ss) have white patches and their other colors are also patchy. Tortoise shell cats with patches are called calico. Tortoise Shell 9 Calico ? XY sS XoY Ss XBY ss XBY Ss L Phenotype 2. Phenotype: 3. Phenotype X4. Phenotype XBX ss XEXB Ss XX Ss 7. Phenotype 8. Phenotype 5. Phenotype 6. Phenotype

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
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Name: Class Date Polygenic Inheritance: Cat Coat Color Read aboutthe inheritance of cat coat color In each cat below, predict the phenotype of each genotype and color in each catl Make sure you indicate whether each cat is male or female One gene that affects coat color in cats is an x linked gene we'll call the pigment gene. One allele causes black fur (X) and one allele gives the cat orange fur (X"). These alleles act in a codominant manner, because when a cat has two different alleles (XB Xb), the cat has a pattern called tortoise shell, where the cat has both orange and black hairs. The Y chromosome does not have this coat color gene There is another gene that affects coat color in cats called the piebalding gene. This gene is on an autosomal chromosome and the alleles affect the amount of white patches that appear in the cat's coat, Some cats (ss) have o white patches and their other colors are blended, not patchy. Some cats (SS or Ss) have white patches and their other colors are also patchy. Tortoise shell cats with patches are called calico. Tortoise Shell ? Calico XDY ss XbY Ss XBY s XBY SS I. Phenotype 2. Phenotype: 3. Phenotype: 4. Phenotype XBXB ss XBXB Ss 7. Phenotype: 8. Phenotype: 6. Phenotype: 5. Phenotype: XBXD Y Ss XBXb Ss XBXD SS (really rare case) II. Phenotype: 10. Phenotype 9 Phenotype: (C) Bethany Lou 2016
Transcribed Image Text:Name: Class Date Polygenic Inheritance: Cat Coat Color Read aboutthe inheritance of cat coat color In each cat below, predict the phenotype of each genotype and color in each catl Make sure you indicate whether each cat is male or female One gene that affects coat color in cats is an x linked gene we'll call the pigment gene. One allele causes black fur (X) and one allele gives the cat orange fur (X"). These alleles act in a codominant manner, because when a cat has two different alleles (XB Xb), the cat has a pattern called tortoise shell, where the cat has both orange and black hairs. The Y chromosome does not have this coat color gene There is another gene that affects coat color in cats called the piebalding gene. This gene is on an autosomal chromosome and the alleles affect the amount of white patches that appear in the cat's coat, Some cats (ss) have o white patches and their other colors are blended, not patchy. Some cats (SS or Ss) have white patches and their other colors are also patchy. Tortoise shell cats with patches are called calico. Tortoise Shell ? Calico XDY ss XbY Ss XBY s XBY SS I. Phenotype 2. Phenotype: 3. Phenotype: 4. Phenotype XBXB ss XBXB Ss 7. Phenotype: 8. Phenotype: 6. Phenotype: 5. Phenotype: XBXD Y Ss XBXb Ss XBXD SS (really rare case) II. Phenotype: 10. Phenotype 9 Phenotype: (C) Bethany Lou 2016
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