Concepts of Genetics (12th Edition)
12th Edition
ISBN: 9780134604718
Author: William S. Klug, Michael R. Cummings, Charlotte A. Spencer, Michael A. Palladino, Darrell Killian
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 3, Problem 25ESP
Tay–Sachs disease (TSD) is an inborn error of
- (a) Draw a pedigree of the families of this couple, showing the relevant individuals.
- (b) Calculate the probability that both the male and female are carriers for TSD.
- (c) What is the probability that neither of them is a carrier?
- (d) What is the probability that one of them is a carrier and the other is not? [Hint: The p values in (b), (c), and (d) should equal 1.]
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Heterozygous Cc chickens express a condition called creeper, in
which the leg and wing bones are shorter than normal (cc). The
dominant C allele is lethal when homozygous. Skin color is
determined by the alleles W and w.
W_ chickens have white skin and ww chickens have yellow skin.
In a mating between 2 chickens heterozygous for both of these
genes:
1) What phenotypes will be observed in the progeny?
2) What fraction of the offspring will have each phenotype?
Assign alleles.
List possible phentoypes.
Make gametes, draw Punnett square, and list fractions of
genotypes and/or phenotypes of offspring,
In a paternity case, a single mother claimed that a certain man was the father of her baby. The man denied it claiming that her current boyfriend was the father. The court ordered a blood test (cheaper than DNA testing) to see if he could be ruled out as the father. The mother was Type O and the baby was Type O. The man was Type AB.
What is the possible genotype of the biological father?
heterozygous Type A
homozygous Type A
heterozygous Type B
Homozygous Dominant
First Offspring
First Two Offspring
Use dihybrid cross to solve the following problems.
Genotype
НА
На
hA
ha
НА
НН АА НН Аа Hh AA Hh Аа
На
НН Аa НН аа Hh Aa Hh aа
hA
Hh AA Hh Aa hh AA hh Aa
ha
Hh Aa Hh aa hh Aa hh aa
Key:
H = long hair
h = short hair
A = brown
a = green
What is the probability of having offspring that are homozygous dominant for both traits?
O A. 1/16
ОВ. 1/8
о с. 1/4
O D. 1/2
DELL
&
#3
6.
7
9.
* C0
Chapter 3 Solutions
Concepts of Genetics (12th Edition)
Ch. 3 - Pigeons may exhibit a checkered or plain color...Ch. 3 - Considering the Mendelian traits round versus...Ch. 3 - Using the forked-line, or branch diagram, method,...Ch. 3 - In one of Mendels dihybrid crosses, he observed...Ch. 3 - The following pedigree is for myopia...Ch. 3 - If they seek genetic counseling, what issues would...Ch. 3 - If you were in Thomass position, would you want to...Ch. 3 - If Thomas tests positive for the HD allele, should...Ch. 3 - HOW DO WE KNOW? In this chapter, we focused on the...Ch. 3 - CONCEPT QUESTION Review the Chapter Concepts list...
Ch. 3 - Albinism in humans is inherited as a simple...Ch. 3 - Which of Mendels postulates are illustrated by the...Ch. 3 - Discuss how Mendels monohybrid results served as...Ch. 3 - What advantages were provided by Mendels choice of...Ch. 3 - Mendel crossed peas having round seeds and yellow...Ch. 3 - Based on the preceding cross, what is the...Ch. 3 - Which of Mendels postulates can only be...Ch. 3 - In a cross between a black and a white guinea pig,...Ch. 3 - What is the basis for homology among chromosomes?Ch. 3 - In Drosophila, gray body color is dominant to...Ch. 3 - How many different types of gametes can be formed...Ch. 3 - Mendel crossed peas having green seeds with peas...Ch. 3 - In a study of black guinea pigs and white guinea...Ch. 3 - Mendel crossed peas having round green seeds with...Ch. 3 - Prob. 17PDQCh. 3 - The following are F2 results of two of Mendels...Ch. 3 - In assessing data that fell into two phenotypic...Ch. 3 - Prob. 20PDQCh. 3 - Consider the following pedigree. Predict the mode...Ch. 3 - Draw all possible conclusions concerning the mode...Ch. 3 - For decades scientists have been perplexed by...Ch. 3 - A wrongful birth case was recently brought before...Ch. 3 - TaySachs disease (TSD) is an inborn error of...Ch. 3 - Datura stramonium (the Jimsonweed) expresses...Ch. 3 - The wild-type (normal) fruit fly, Drosophila...Ch. 3 - To assess Mendels law of segregation using...Ch. 3 - Albinism, caused by a mutational disruption in...Ch. 3 - (a) Assuming that Migaloos albinism is caused by a...
Additional Science Textbook Solutions
Find more solutions based on key concepts
What is the difference between histology and radiography?
Human Anatomy (8th Edition)
Propose a model for the assembly of a flagellum in a typical Gram-positive cell envelope.
Prescott's Microbiology
Identify each of the following reproductive barriers as prezygotic or postzygotic. a. One lilac species lives o...
Campbell Essential Biology with Physiology (6th Edition)
Explain why hyperthermophiles do not cause disease in humans.
Microbiology with Diseases by Taxonomy (5th Edition)
More than one choice may apply. Using the terms listed below, fill in the blank with the proper term. anterior ...
Essentials of Human Anatomy & Physiology (12th Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- A red-eyed (dominant) female with a grey (dominant) body is crossed with red-eyed (dominant) male with a yellow body (recessive) The pair of fruit flies (given above) produce 320 offspring together from a single mating: 57 red-eyed females with grey bodies, 61 red-eyed females with yellow bodies, 22 brown- eyed females with grey bodies, 20 brown-eyed females with yellow bodies. 59 red-eyed males with grey bodies, 63 red-eyed males with yellow bodies, 20 brown-eyed males with grey bodies, 18 brown-eyed males with yellow bodies. From this information only (NO genetic diagrams required), what evidence and logic can you use to deduce the genetic identity of the parent flies?arrow_forwardA species of fish can either have dominant red tins (R) or recessive white fins (r). Fin lengths can either be dominant long (L) or recessive short (1). A dihybrid cross between two of these fish occurs. Each fish is heterozygous for the traits of fin color and fin length. How many possible gamete genotypes will each parent fish produce? A-1 B-4 C-2 D-3arrow_forwardMonohybrid Crosses and Punnett Squares Punnett squares are diagrams that can be used to predict the offspring that could result from a combination of the gametes produced by two parents (or an organism that can self-fertilize). The alleles from the gametes of one parent (e.g., eggs) are placed on one axis of the Punnett square while the alleles from the gametes of the other parent (e.g., sperm) are placed on the other axis. 1. Pea plants have two alleles for height: Tis the dominant allele and produces tall plants; t is the recessive allele and produces short plants. Consider two parental pea plants each have the genotype Tt and answer the following questions. a. What type of gametes can a plant with genotype Tt produce? b. Assign the maternal gametes to one axis in the Punnett square at right. c. Assign the paternal gametes to one axis in the Punnett square at right. 2. Pea plants have two alleles for pea color: Y is the dominant allele and produces yellow peas; y is the 1 nment)…arrow_forward
- Draw a Punnet square indicating the F2 genotypes from the mating of an F1 male (QQBbHh) with an Fi female (QQBÜHH). Note: Make sure to write all the heterozygous genotypes as Gg, not gG.arrow_forwardImagine a cross between a man and a woman having the following genotypes: Genotype of the Husband Genotype of the Wife Aa bb Dd Gg Hh RR Tt X Aa Bb Dd gg Hh Rr Tt Assuming that the dominant allele in each gene pair exhibits complete dominance over the recessive allele, what is the probability that this couple would have a daughter who exhibits the recessive phenotype with respect to all seven of the gene pairs?arrow_forwardOn the planet of Caracas, in the Stellar Solorais KaChunka Galaxy, there is a population of Nuggetarians. A phenotype of interest is Peanutus02. There are two alleles for the autosomal gene associated with Peanutus02. A true-breeding cross between a female with the Peanutus02 (disease) phenotype and a male with the wild-type phenotype produces the following offspring counts: Phenotype Number of Males Number of Females Wild-Type 550 562 Peanutus02 0 0 Of the following choices, the most likely mode of inheritance for the Peanutus02 phenotype is: On the planet of Caracas, in the Stellar Solorais KaChunka Galaxy, there is a population of Nuggetarians. A phenotype of interest is Peanutus02. There are two alleles for the autosomal gene associated with Peanutus02. A true-breeding cross between a female with the Peanutus02 (disease) phenotype and a male with the wild-type phenotype produces the following offspring counts: Phenotype Number of Males Number of Females Wild-Type…arrow_forward
- A woman is homozygous dominant for short fingers. She marries a man who is heterozygous for short fingers. What will the punnet square look likearrow_forwardIn Andalusian fowls, black (BB) and white (bb) individuals are homozygous. When a homozygous black bird (BB) is crossed with a homozygous white (bb) bird offspring are all bluish-gray (Bb). Show the cross as well as the genotypes and phenotypes of the parental cross between two heterozygous parents. 1. P1: _________ x _________ 2. Punnett Square: 3. Genotype symbols: 4. Genotype in words: 5. Genotypic ratio: 6. Genotypic %: 7. Phenotype symbols: 8. Phenotype in words: 9. Phenotypic ratio: 10. Phenotypic %:arrow_forwardA homozygous gray female is crossed with a yellow male. The F1 are intercrossed to produce the F2. Give the genotypes and phenotypes, along with the expected proportions, of the F1 and F2 progeny.arrow_forward
- Brown Enamel of the teeth is a well-known sex-linked dominant trait. Showing ALL work using punnett squares, determine the genotypes of offspring for the following matings: A.) The father of a family has a defect, but the mother does not and does not carry it. B.) The father has the defect, and the mother is heterozygous for it. C.) The father does not have the defect and the mother is homozygous for it. D.) The father does not have the defect and the mother is heterozygous.arrow_forwardHemophilia is a sex-linked trait where XH gives normal blood clotting and is dominant to the hemophilia allele X h Identify the genotypes of… 1) a woman with normal blood clotting whose father had hemophilia 2) a normal man whose father had hemophilia. What is the probability that a mating between these two individuals will produce a child, regardless of sex, that has hemophilia?arrow_forwardIn onion, male sterility is produced when the nuclear genotype is aa and the mitochondrial gene S (sterile) are present. Any other combination of nuclear genotype and mitochondrial gene (including gene F for fertile) will result in a male fertile plant. Give the genotypic ratio and the phenotypic ratio or the percentage of male sterile and male fertile offspring that will be produced in the following crosses. 1. Aa + S male x aa + F female 2. Reciprocal cross of number 1. (Note that when we do reciprocal cross, we interchange/swap the genotypes of the parents (if there is a nuclear gene involved, you interchange the nuclear genotype as well). 3. Aa + S female x Aa + F male 4. Reciprocal cross of number 3.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Human Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage Learning
Human Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning
Biology Today and Tomorrow without Physiology (Mi...BiologyISBN:9781305117396Author:Cecie Starr, Christine Evers, Lisa StarrPublisher:Cengage Learning
Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College
Human Heredity: Principles and Issues (MindTap Co...
Biology
ISBN:9781305251052
Author:Michael Cummings
Publisher:Cengage Learning
Human Biology (MindTap Course List)
Biology
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cengage Learning
Biology Today and Tomorrow without Physiology (Mi...
Biology
ISBN:9781305117396
Author:Cecie Starr, Christine Evers, Lisa Starr
Publisher:Cengage Learning
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College
Introduction to the NIOSH Manual of Analytical Methods Fifth edition; Author: Centers for Disease Control and Prevention (CDC);https://www.youtube.com/watch?v=B5rUrKLMoas;License: Standard Youtube License