Introduction To Genetic Analysis
12th Edition
ISBN: 9781319114787
Author: Anthony J.F. Griffiths, John Doebley, Catherine Peichel, David A. Wassarman
Publisher: W. H. Freeman
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Chapter 2, Problem 54P
Summary Introduction
To determine: The mode of inheritance of the rare blood disease using a pedigree chart.
Introduction: The human consists of 23 pairs of chromosomes, condensed form of chromatids which divide during cell division into daughter cells. The human has 22 autosomes and one pair of sex chromosomes. The sex chromosomes determine the sex in an individual based on the type of sex chromosomes that are present in the fusing gametes.
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n the space below, use colored pencils to create a pedigree with the following information. Follow the guidelines for a
pedigree when creating this one.
Ray and Elaine were married in 1970. They both had normal vision. They had 2 daughters and then a son.
Both daughters, Alicia and Candace, had normal vision and never had any children of their own. The son, Mike, was
colorblind. The son married Beth who also had normal vision and they had 2 children of their own, first Greg then
Victoria. Victoria was colorblind, but Greg was not. Colorblindness is a sex-linked recessive trait.
Do not forget what shapes are male and female. Place the names and genotypes of the people under their shape.
Color your individuals the following:
Red- for colorblindness
White-for regular vision
Blue- for individuals with regular vision but are carriers
Green- unknown genotype
The pedigree below shows the inheritance of the rare blistering disease (epidermolysis) in dogs. Affected individuals are indicated in black, and those not showing symptoms (phenotypically normal) of the disease in white.
The pedigree below represents an autosomal recessive disease. What characteristic(s) of the pedigree supports this statement?
Number the generations and individuals in this pedigree.
Write the genotypes and their genotype probabilities for all the individuals in the pedigree. Use E/eas the allele symbols.
The Pedigree below represents what type of inheritance pattern?
Selected answer will be automatically saved. For keyboard navigation, press up/down arrow keys to select an answer.
a
b
C
d
e
Y-Linked Inheritance
Autosomal Dominance Inheritance
Autosomal Recessive Inheritance
X-linked Inheritance
Affected female
Normal femal
Afaced male
Normal male
Insufficient Information
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Chapter 2 Solutions
Introduction To Genetic Analysis
Ch. 2 - Prob. 1PCh. 2 - Prob. 2PCh. 2 - Prob. 3PCh. 2 - Prob. 4PCh. 2 - Prob. 5PCh. 2 - Prob. 6PCh. 2 - Prob. 7PCh. 2 - Prob. 8PCh. 2 - Prob. 9PCh. 2 - Prob. 10P
Ch. 2 - Prob. 11PCh. 2 - Prob. 12PCh. 2 - Prob. 13PCh. 2 - Prob. 14PCh. 2 - Prob. 15PCh. 2 - Prob. 17PCh. 2 - Prob. 18PCh. 2 - Prob. 19PCh. 2 - Prob. 20PCh. 2 - Prob. 21PCh. 2 - Prob. 22PCh. 2 - Prob. 23PCh. 2 - Prob. 24PCh. 2 - Prob. 25PCh. 2 - Prob. 26PCh. 2 - Prob. 27PCh. 2 - Prob. 28PCh. 2 - Prob. 29PCh. 2 - Prob. 30PCh. 2 - Prob. 31PCh. 2 - Prob. 32PCh. 2 - Prob. 33PCh. 2 - Prob. 34PCh. 2 - Prob. 35PCh. 2 - Prob. 36PCh. 2 - Prob. 37PCh. 2 - Prob. 38PCh. 2 - Prob. 39PCh. 2 - Prob. 40PCh. 2 - Prob. 41PCh. 2 - Prob. 42PCh. 2 - Prob. 43PCh. 2 - Prob. 44PCh. 2 - Prob. 45PCh. 2 - Prob. 46PCh. 2 - Prob. 47PCh. 2 - Prob. 48PCh. 2 - Prob. 49PCh. 2 - Prob. 50PCh. 2 - Prob. 51PCh. 2 - Prob. 52PCh. 2 - Prob. 53PCh. 2 - Prob. 54PCh. 2 - Prob. 55PCh. 2 - Prob. 56PCh. 2 - Prob. 56.1PCh. 2 - Prob. 56.2PCh. 2 - Prob. 56.3PCh. 2 - Prob. 56.4PCh. 2 - Prob. 56.5PCh. 2 - Prob. 56.6PCh. 2 - Prob. 56.7PCh. 2 - Prob. 56.8PCh. 2 - Prob. 56.9PCh. 2 - Prob. 56.10PCh. 2 - Prob. 56.11PCh. 2 - Prob. 56.12PCh. 2 - Prob. 56.13PCh. 2 - Prob. 56.14PCh. 2 - Prob. 56.15PCh. 2 - Prob. 57PCh. 2 - Prob. 58PCh. 2 - Prob. 59PCh. 2 - Prob. 60PCh. 2 - Prob. 61PCh. 2 - Prob. 62PCh. 2 - Prob. 63PCh. 2 - Prob. 64PCh. 2 - Prob. 65PCh. 2 - Prob. 67PCh. 2 - Prob. 68PCh. 2 - Prob. 69PCh. 2 - Prob. 70PCh. 2 - Prob. 71PCh. 2 - Prob. 72PCh. 2 - Prob. 73PCh. 2 - Prob. 74PCh. 2 - Prob. 75PCh. 2 - Prob. 76PCh. 2 - Prob. 77PCh. 2 - Prob. 78PCh. 2 - Prob. 79PCh. 2 - Prob. 80PCh. 2 - Prob. 81PCh. 2 - Prob. 82PCh. 2 - Prob. 83PCh. 2 - Prob. 84PCh. 2 - Prob. 85PCh. 2 - Prob. 86PCh. 2 - Prob. 87PCh. 2 - Prob. 88PCh. 2 - Prob. 89PCh. 2 - Prob. 90PCh. 2 - Prob. 91PCh. 2 - Prob. 1GSCh. 2 - Prob. 2GSCh. 2 - Prob. 3GS
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- The questions below all refer to the following pedigree. The locus for allele D/d determines how cilia function within the body. Mutations at this allele cause abnormal ciliary function, resulting in a clinical disorder characterized by frequent respiratory infections (including in the ears, sinuses, and lungs), as well as infertility. In the pedigree, black circles/squares represent individuals affected by the disorder. White circles/squares represent unaffected individuals. Remember, if a trait is rare in a population (such as this one), we assume individuals marrying into the family are NOT carriers unless the information provided indicates otherwise. ||| IV B1 C1_ B2 C2 D1 A1 C3 D2 Probability that D5 is a carrier: B3 A2 B4 Probability that Taylor is a carrier: org B5 O C4. D4____ Probability that two carriers will have an affected child: C5 1) What is the probability that B3 is a carrier of this disorder? Show your work with a Punnett Square in addition to stating the probability…arrow_forwardThe questions below all refer to the following pedigree. The locus for allele D/d determines how cilia function within the body. Mutations at this allele cause abnormal ciliary function, resulting in a clinical disorder characterized by frequent respiratory infections (including in the ears, sinuses, and lungs), as well as infertility. In the pedigree, black circles/squares represent individuals affected by the disorder. White circles/squares represent unaffected individuals. Remember, if a trait is rare in a population (such as this one), we assume individuals marrying into the family are NOT carriers unless the information provided indicates otherwise. A1 A2. || B1. B2. B3 B4. B5 B6. II C1_ C2. C3. C4. C5 IV D1 D2- D4 - D5_ 1) What is the probability that B3 is a carrier of this disorder? Show your work with a Punnett Square in addition to stating the probabilityarrow_forwardThe questions below all refer to the following pedigree. The locus for allele D/d determines how cilia function within the body. Mutations at this allele cause abnormal ciliary function, resulting in a clinical disorder characterized by frequent respiratory infections (including in the ears, sinuses, and lungs), as well as infertility. In the pedigree, black circles/squares represent individuals affected by the disorder. White circles/squares represent unaffected individuals. Remember, if a trait is rare in a population (such as this one), we assume individuals marrying into the family are NOT carriers unless the information provided indicates otherwise. A1 A2 II B1 B2 B3 B4. B5 B6_ II C1. C2 C3. C4. C5 IV D1. D2, D4 . D5 Individuals C2 and C3 are considering having additional children. However, having already had a child with this disorder, they visit a genetic counselor to determine what the probability is that their future child would have the disorder. If C2 and C3 have another…arrow_forward
- In Figure 2-19, assume that the pedigree is for mice, inwhich any chosen cross can be made. If you bred IV-1with IV-3, what is the probability that the first baby willshow the recessive phenotype?arrow_forwardAre blue feathers dominant or recessive in the pedigree? (look at image)arrow_forwardUse the image below to answer the following questions. Label the genotypes for ALL the family members in the pedigree above. Remember to use XX and XY when labeling. What does it mean to be a carrier? Why does Alexis have hemophilia? Is hemophilia a sex-linked disease? What does that mean and how does this pedigree show you this?arrow_forward
- Create a pedigree with the following information on a family with colorblindness carried in their family and then choose the correct answer to the questions at the bottom about what you created. 1. Ray and Elaine were married in 1970. They both had normal vision. 2. They had 2 daughters and then a son. 3. Both daughters, Alicia and Candace, had normal vision and never had any children of their own. 4. The son, Mike, was colorblind. 5. The son married Beth who also had normal vision and they had 2 children of their own, first Greg then Victoria. Victoria was colorblind, but Greg was not. 6. Colorblindness is a sex-linked recessive trait. 7. Place the names and genotypes of the people under their shape.arrow_forwardplease helparrow_forwardThe pedigree table below shows the blood types of three generations of family members. Notice that some of the blood type phenotypes have been given to you. What is the genotype of the individuals 1-6? Give the probable genotype of all other family members. 2 AB 6. A AB E Amy Brawa Seleeeearrow_forward
- A breeder is interested in a new coat colour in mice. This trait is controlled by a single autosomal gene (Gene T) with two alleles. The T-allele results in a yellow coat colour, while the recessive allele causes a cream coat colour. The breeder has a yellow mouse. Can you suggest how the breeder can determine the genotype (TT or Tt) of his mouse in a single cross? Describe this cross and provide details on how you would interpret the results.arrow_forwardMany different traits in the human race are the result of recessive or dominant inheritance. Select a trait from the list below and create a family pedigree chart for the trait. Complete at least three generations. You may use your own family, a friends family or a famous celebrity family to create your pedigree. Upload a copy of your pedigree into the text box or copy and paste it into the text box. If you do not wish to create a pedigree for freckles, you may use any of the following traits to create your own pedigree. asaparrow_forwardIn this family tree, individuals with the trait are shown in black. Circles represent biological females. Squares represent biological males. Is the trait dominant or recessive? Explain your answer. Is the trait sex-linked? Explain your answer.arrow_forward
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