Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Chapter 16, Problem 11TYU
Summary Introduction
Introduction: The inheritance patterns for the inheritance of traits are autosomal dominant or recessive, or sex-linked. The traits due to the genes on autosomes are inherited in a simple Mendelian pattern; they can be dominant or recessive. An autosomal dominant trait appears in individuals with a dominant allele, whether they are homozygous or heterozygous. An autosomal recessive trait appears in individuals that are homozygous for the recessive allele.
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Albinism, lack of pigmentation in humans, results from an autosomal recessive gene (a). Two parents with normal pigmentation have an albino child.
(a) What is the probability that their next child will be albino?
(b) What is the probability that their next child will be an albino girl?
(c) What is the probability that their next three children will be albino?
Genetics
Constrict a Table:
(i) Compare and contrast the down syndrome, pattau syndrome, turnor syndrome, Klinefelter syndrome, trisomy 21, trisomy 18.
(ii) compare and contrast the different inheritance disorders in pedigree.
(iii) compare and contrast the mendalin and non- mendalin types in detail (with all types).
Thanks in advance.
10.
(f)
(g)
(h)
(c)
(d)
(e)
(1)
9.
(a)
Deafness in cocker spaniels is inherited. The allele for deafness is recessive to the allele for normal hearing.
Two cocker spaniels with normal hearing are mated together. They produce a litter of eight pups, two of
which are found to be deaf.
(b)
(a) Give the genotypes of the parents. DDd x Dd 1
(b) Show the possible genotypes, phenotypes and probabilities for the offspring.
Genotypes
DD
dD
(c) How many of the puppies will be unable to produce deaf offspring?
Dd
dd
Having dimples (D) is dominant over not having dimples (d). A dimpled woman (whose father had no
dimples and whose mother did have dimples) marries a man whose mother had no dimples, whose father
had no dimples, and whose grandparents on his father's side did have dimples!
Phenotypes
What is the genotype of the woman?
What is the genotype of the man?
Genotypes Phenotypes
How many different genotypes are possible among the offspring?
How many different phenotypes are possible among the…
Chapter 16 Solutions
Biology (MindTap Course List)
Ch. 16.1 - Distinguish between karyotyping and pedigree...Ch. 16.1 - Prob. 2LOCh. 16.1 - Prob. 3LOCh. 16.1 - Prob. 1CCh. 16.1 - Prob. 2CCh. 16.1 - Describe two ways in which genome database...Ch. 16.1 - Prob. 4CCh. 16.2 - Explain how nondisjunction in meiosis is...Ch. 16.2 - Distinguish among the following structural...Ch. 16.2 - Prob. 6LO
Ch. 16.2 - VISUALIZE Draw a simple sketch illustrating how...Ch. 16.2 - Prob. 2CCh. 16.2 - Prob. 3CCh. 16.2 - Prob. 4CCh. 16.3 - State whether each of the following genetic...Ch. 16.3 - Which of the following genetic diseases is/are...Ch. 16.3 - Prob. 2CCh. 16.3 - Prob. 3CCh. 16.4 - Briefly discuss the process of gene therapy,...Ch. 16.4 - Prob. 1CCh. 16.5 - State the relative advantages and disadvantages of...Ch. 16.5 - Distinguish between genetic screening programs for...Ch. 16.5 - Prob. 1CCh. 16.5 - Prob. 2CCh. 16.6 - Prob. 11LOCh. 16.6 - Prob. 1CCh. 16.6 - CONNECT To be expressed, an autosomal recessive...Ch. 16.6 - Prob. 3CCh. 16 - Prob. 1TYUCh. 16 - An abnormality in which there is one more or one...Ch. 16 - The failure of chromosomes to separate normally...Ch. 16 - Prob. 4TYUCh. 16 - Prob. 5TYUCh. 16 - Prob. 6TYUCh. 16 - Prob. 7TYUCh. 16 - Prob. 8TYUCh. 16 - Examine the following pedigrees. Which is the most...Ch. 16 - Examine the following pedigrees. Which is the most...Ch. 16 - Prob. 11TYUCh. 16 - SCIENCE, TECHNOLOGY, AND SOCIETY Imagine that you...Ch. 16 - A common belief about human genetics is that an...Ch. 16 - Prob. 14TYUCh. 16 - EVOLUTION LINK Explain some of the evolutionary...
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- TO င် ၅ဝပ် တွင် တွင် ၏ ဝ DO (A) The blue trait is inherited as an autosomal recessive trait which means that affected individuals have copies of a mutant gene. (B) Indicate which individuals are carriers of the "blue" gene by placing the letters Bb next to their symbol. (C) What is the relationship of the parents of the "blue" children? (D) What is the probability that the unaffected siblings of the "blue" children are carriers for the "blue" trait? (E) What warning does marrying close relatives does this illustrate?arrow_forwardOne form of the bleeding disorder known as von Willebrand disease is an autosomal recessive disease. A man who is a carrier marries a woman who is also a carrier of the disease. (a) What percentage of their children are likely to have a disease phenotype? (b) What percentage of their children are likely to have a normal phenotype? (c) What percentage of their children are likely to be carriers of the disease?arrow_forwardThe Pedigree shown is O O 마ㅇ ㅇㅇㅇ 이탕 - ㅁㅁㅇㅁ 5 A) Autosomal Dominant B) Sex linked recessive C) Autosomal Recessive D) Sex linked dominantarrow_forward
- Now assume that the pedigree shown in question 1 shows the inheritance of a rare genetic disease. a) The disease is most likely autosomal dominant b) The disease is most likely autosomal recessive c) The disease is equally likely to be either autosomal dominant or autosomal recessive, but cannot be x-linked d) Cannot be determined from the information givenarrow_forwardAlbinism in humans is inherited as a simple recessive trait. For the following families, determine the genotypes of the parents and offspring. (When two alternative genotypes are possible, list both.) (a) Two normal parents have five children, four normal and one albino. (b) A normal male and an albino female have six children, all normal. (c) A normal male and an albino female have six children, three normal and three albino. (d) Construct a pedigree of the families in (b) and (c). Assume that one of the normal children in (b) and one of the albino children in (c) become the parents of eight children. Add these children to the pedigree, predicting their phenotypes (normal or albino).arrow_forwarda) Identify and describe 5 different types of genetic inheritance.(b) In humans, glucose-6-phosphate dehydrogenase deficiency is a recessive X-linkedtrait. Describe the inheritance of this disease, including an example of the possibleoutcomes of:(i) An affected mother and an unaffected father having children. (ii) An affected father and a homozygous unaffected mother having childrenarrow_forward
- Consider the two very limited unrelated pedigrees shown here. Of the four combinations of X-linked recessive, Xlinked dominant, autosomal recessive, and autosomal dominant, which modes of inheritance can be ruled out in each case? (a) (b) II 1arrow_forwardCould the trait indicated in the pedigree above be caused by an autosomal gene? Hint: consider each type of autosomal inheritance and see if it could explain the inheritance of the trait. a) Yes, an autosomal dominant gene could explain this trait. b) Yes, an autosomal recessive gene could explain this trait. c) No, an autosomal gene could not account for this pedigree. d) Yes, A and B are true.arrow_forwardWhat genetic criteria distinguish a case of extranuclear inheritance from (a) a case of Mendelian autosomal inheritance; (b) a case of X-linked inheritance?arrow_forward
- 2) The length of your eyelashes follows an autosomal inheritance pattern. Long eyelashes (E) are dominant over short eyelashes (e). A woman with type AB blood who is heterozygous for eyelashes has children with a man who is heterozygous type-A blood and who has short eyelashes. a) Complete a Punnett square showing the possible genotypes of their offspring. b) What percent of their offspring would have short eyelashes and Type-A blood?arrow_forwardA particular person is said to be a carrier of a genetic trait. What does this tell you about their phenotype? (a) They physically show the trait. (b) They physically show the trait more than a noncarrier would show the trait.(c) They are almost normal but show an intermediate phenotype for the trait. (d) They are completely normal and do not physically show the trait.arrow_forwardA common kind of red-green blindness in humans is caused by the presence of a sex-linked recessive gene c, whose normal allele is c+. Using these genes, what are the possible genotypes and their corresponding phenotypes in males and females? Can two colorblind parents produce a normal son? (b) A normal daughter? (c) Can two normal parents produce a colorblind son? (d) a colorblind daughter?arrow_forward
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