Genetic Analysis: An Integrated Approach (3rd Edition)
3rd Edition
ISBN: 9780134605173
Author: Mark F. Sanders, John L. Bowman
Publisher: PEARSON
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Chapter E, Problem 2P
Compare and constast the terms paternity index (PI) and combined paternity index (CPI). How does each contribute to paternity determination?
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Show the complete solution including the Punnett Sq. Lina has dimples, freckles, and a widow’s peak. She is a heterozygous for all of the three traits. David, her husband also has freckles and dimples but has a continuous hairline. As freckle is known to be dominant over none, dimples are dominant over no dimples, and widow’s peak is dominant over continuous hairline, identify the
Probability that their child will have three recessiveness: no freckle, no dimples, and has widow’s peak; and
Probability that their child will have the same phenotype as Lina (with freckles, dimples, and widow’s peak).
Legend:
Ff – freckles
Dd – dimples
Ww – widow’s peak
Hemophilia is inherited as a sex-linked recessive trait. A non-hemophilic man marries a non-hemophilic woman whose father had hemophilia.
With respect to this information, indicate all possible genotypes their children could possibly have.
Show ALL work using punnett squares.
The following is a summary of the possible sickle-cell genotypes and phenotypes:
AA - cojmpletely normal
AS - sickle-cell trait (this person has a combination of normal hemoglobin and the abnormal, sickled form of hemoglobin)
SS - sickle-cell anemia (all abnormal hemoglobin)
Make a punnett square for help answering the question:
What is the probability of a couple having a child with sickle-cell trait if one parent is normal and the other has sickle-cell trait?
Chapter E Solutions
Genetic Analysis: An Integrated Approach (3rd Edition)
Ch. E - E.1 What is CODIS? Describe the four most...Ch. E - Compare and constast the terms paternity index...Ch. E - What is exclusion principle? How is it used in...Ch. E - What is the statistical principle underlying...Ch. E - Explain the meaning of identity by descent in the...Ch. E - Prob. 6PCh. E - E.7 The results shown are from a DNA test for four...Ch. E - E.8 Figure illustrates the results of an...Ch. E - E.9 Additional STR allele frequency information...Ch. E - Prob. 10P
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- For the odds ratio and relative risk, what is the importance of the number 1?arrow_forwardWhat will be the possible offspring from a dad who has hemophilia and a mom who is a carrier? Include Punnett square, genotypic and phenotypic ratios.arrow_forwardShow the complete solution including the Punnett Sq. Lina has dimples, freckles, and a widow’s peak. She is a heterozygous for all of the three traits. David, her husband also has freckles and dimples but has a continuous hairline. As freckle is known to be dominant over none, dimples are dominant over no dimples, and widow’s peak is dominant over continuous hairline, what is the a) Probability that their child will have three recessiveness: no freckle, no dimples, and has widow’s peak; and b) Probability that their child will have the same phenotype as Lina (with freckles, dimples, and widow’s peak)? Legend: Ff – freckles Dd – dimples Ww – widow’s peakarrow_forward
- The identity of Kim's biological father is unknown, but it is thought to be either Kevin or Thomas. To determine which of the two men it is, blood typing of all the persons involved was performed. Here are the results of the blood tests, including the phenotypes and possible genotypes of each person: Rachel (mother) Type AB; genotype IA, IB Kim (child) Type A; genotype is either IA, IA (if homozygous) or IA, i (if heterozygous) Kevin (alleged father #1) Type A; genotype is either IA,IA if homozygous or IA, i if heterozygous Thomas (alleged father #2) Type O; genotype is ii There are 2 DNA bands in the "fingerprint" of each person tested: mother, child, alleged father 1, and alleged father 2. Why are there two bands for each person and not three?arrow_forwardPlease analyze the following STR allele genotypes, and determine who biological father is: Mom Child Allege Father # 1 Alleged Father # 2 7/12 7/15 9/15 10/11 Who is the biological father? _________arrow_forwardThe Eastwoods are going to have a child. She has chestnut hair (MBdMBk), and he has dark brown hair. Find their child's possible hair colors and the probabilities of each. (Enter exact numbers as integers, fractions, or decimals.) blond strawberry blond bright red light brown reddish brown dark red medium brown chestnut auburn dark brown shiny dark brown glossy dark brown black shiny black glossy blackarrow_forward
- Is it okay to write genotypic ratio as 2:2 or it should be 1:1 Genotype: IAIB, IAiarrow_forwardplease DEFINE your genotypic symbols, then list the most probable genotype of each of the individuals indicated. Allele associated with the trait being studied: ________ Allele associated with the “normal” version of this trait: __________ I-1: _________ I-2: ___________ II-1: ________ II-5-6: ________ II-13: ____________ II-14: _____________arrow_forwardDraw a punnett square for each problem. Please be careful to notice whether a trait is homozygous or heterozygous. One parent has O type blood. The other parent has heterozygous B type blood. What are all the possible blood types the children may have? Answer:____________O ____________A _____________B _____________AB In a paternity case a man is accused of having fathered a child. He denies the accusation and presents the following evidence. His blood is O. The mother’s type is AB. The child has AB blood. Could he be the father? _______yes ________noarrow_forward
- A case of disputed paternity involves a woman, Miss X, two men, Smith and Jones, and five children. We have the following information about their blood groups (phenotypes): Adults Blood groups Children Blood groups Miss X A MN Tom AB N Smith AB MN Dick B MN Jones B N Harry O M John O N Janet AB M Can you…arrow_forwardPlease fill the charts completely and correctlyarrow_forwardMarquis weighs 187 pounds. His percent body fat is 17. He wants to achieve a percent body fat of 12. How much weight does he have to lose to achieve to achieve his desired body fat of 12%? Somatotype What is the description of a person with the somatotype 4–6–2? (Use somatotype terminology)arrow_forward
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