Genetics: Analysis and Principles
6th Edition
ISBN: 9781259616020
Author: Robert J. Brooker Professor Dr.
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 25, Problem 6CONQ
Figure 25.1 illustrates albinism in two different species. Describe two other genetic disorders found in both humans and animals.
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Chapter 25 Solutions
Genetics: Analysis and Principles
Ch. 25.1 - Which of the following wouldnotbe consistent with...Ch. 25.1 - 2. Assuming complete penetrance, which type of...Ch. 25.1 - 3. Which of the following is not a common...Ch. 25.1 - Prob. 4COMQCh. 25.2 - Prob. 1COMQCh. 25.2 - Haplotype association studies are aimed at the...Ch. 25.3 - 1. Which of the following is not a method used in...Ch. 25.3 - 2. Which of the following prenatal genetic testing...Ch. 25.4 - Prob. 1COMQCh. 25.5 - 1. An oncogene is produced from a ________that has...
Ch. 25.5 - Which of the following is a type of genetic change...Ch. 25.5 - 3. Tumor-suppressor genes promote cancer...Ch. 25.5 - 4. Normal (nonmutant) tumor-suppressor genes often...Ch. 25.5 - Prob. 5COMQCh. 25.6 - Prob. 1COMQCh. 25 - 1. With regard to pedigree analysis, make a list...Ch. 25 - 2. Explain, at the molecular level, why human...Ch. 25 - 3. Many genetic disorders exhibit locus...Ch. 25 - Prob. 4CONQCh. 25 - Prob. 5CONQCh. 25 - Figure 25.1 illustrates albinism in two different...Ch. 25 - Prob. 7CONQCh. 25 - Prob. 8CONQCh. 25 - Ehler-Danlos syndrome is a rare disorder caused by...Ch. 25 - 10. Hurler syndrome is due to a mutation in a gene...Ch. 25 - Like Hurler syndrome, Fabry disease involves an...Ch. 25 - Achondroplasia is a rare form of dwarfism caused...Ch. 25 - Prob. 13CONQCh. 25 - 14. Marfan syndrome is due to a mutation in a...Ch. 25 - 15. Sandhoff disease is due to a mutation in a...Ch. 25 - Describe the two assumptions that underlie the...Ch. 25 - Prob. 17CONQCh. 25 - What is a prion? Explain how a prion relies on...Ch. 25 - 19. Some people have a genetic predisposition for...Ch. 25 - What is the difference between an oncogene and a...Ch. 25 - Prob. 21CONQCh. 25 - Prob. 22CONQCh. 25 - Prob. 23CONQCh. 25 - Prob. 24CONQCh. 25 - Prob. 25CONQCh. 25 - Prob. 26CONQCh. 25 - Prob. 27CONQCh. 25 - With regard to cancer cells, which of the...Ch. 25 - Prob. 29CONQCh. 25 - 1. Which of the following experimental...Ch. 25 - Prob. 2EQCh. 25 - 3. What is meant by the term genetic testing? How...Ch. 25 - Prob. 4EQCh. 25 - 5. Chapter 21 describes a method known as Western...Ch. 25 - 6. An experimental assay for the blood-clotting...Ch. 25 - 7. Discuss ways to distinguish whether a...Ch. 25 - 8. The codon change (Gly-12 to Val-12) in...Ch. 25 - Explain how DNA microarrays are used in molecular...Ch. 25 - Make a list of the benefits that may arise from...Ch. 25 - 2. Our government has finite funds to devote to...Ch. 25 - Prob. 3QSDC
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- Albinism is characterized by the lack of a dark pigment called melanin in the hair, skin and eyes. Albinism is caused by the absence of an functioning enzyme called thyrosinase, which is necessary for the synthesis of melanin. Given this bit of information, what can you assume about the heredity pattern of this trait? A) It is caused by a recessive allele of the gene coding for thyrosinase. B) It is caused by a dominant allele of the gene coding for melanin. C) It is caused by a dominant allele of the gene coding for thyrosinase. D) It is caused by a recessive allele of the gene coding for melanin. E) There is not enough information here to tellarrow_forwardPancreatic cancer is clearly inherited as an autosomal dominant trait in the family illustrated in Figure 23.1. Yet most cases of pancreatic cancer are sporadic, appearing as isolated cases in families with no obvious inheritance. How can a trait be strongly inherited in one family and not inherited in another?arrow_forwardEhler-Danlos syndrome is a rare disorder caused by a mutation ina gene that encodes a protein called collagen (type 3 A1). Collagenis found in the extracellular matrix that plays an important role inthe formation of skin, joints, and other connective tissues. Peoplewith Ehler-Danlos syndrome have extraordinarily flexible skin and very loose joints. The pedigree below contains several individualsaffected with this syndrome, shown with black symbols. Based onthis pedigree, does the syndrome appear to follow autosomalrecessive, autosomal dominant, X-linked recessive, or X-linkeddominant inheritance? Explain your reasoning.arrow_forward
- In man, muscular dystrophy is a condition in which the muscles waste away during early life and may result in a shorter life expectancy. It is due to a sex-linked, recessive gene. A certain couple has five children – three boys (ages 1yr, 3yrs, and 10yrs old) and two girls (ages 5yrs and 7yrs old). The oldest boy shows the symptoms of this disease. You are their family physician and they come to you for advice. What would you tell them about the chances of their other children developing the disease?arrow_forwardCompare and contrast the molecular and phenotypic features of Prader-Willi and Angelman syndromes.arrow_forwardLesch-Nyhan syndrome is due to a mutation in a gene that encodesa protein called hypoxanthine-guanine phosphoribosyltransferase(HPRT). HPRT is an enzyme that functions in purine metabolism.People afflicted with this syndrome have severe neurodegenerationand loss of motor control. The pedigree below contains severalindividuals with Lesch-Nyhan syndrome, shown with blacksymbols. Based on this pedigree, does this syndrome appearto be inherited by an autosomal recessive, autosomal dominant,X-linked recessive, or X-linked dominant pattern? Explainyour reasoning.arrow_forward
- The gene known to be mutated in cases of Agammaglobulinemia 2 (which is inherited in an autosomal recessive pattern) is the immunoglobulin lambda like polypeptide 1 (IGLL1 ENSG00000128322). What is known about the gene is recorded here: http://www.ensembl.org/Homo_sapiens/Gene/Summary?g=ENSG00000128322;r=22:23573125-23580302 Please navigate to the link above to answer the following question: Using the left-hand menu to view the sequence for IGLL1, what are the last 12 nucleic acid bases of exon 1?arrow_forwardThe gene known to be mutated in cases of Agammaglobulinemia 2 (which is inherited in an autosomal recessive pattern) is the immunoglobulin lambda like polypeptide 1 (IGLL1 ENSG00000128322). What is known about the gene is recorded here: http://www.ensembl.org/Homo_sapiens/Gene/Summary?g=ENSG00000128322;r=22:23573125-23580302 Please navigate to the link above and click, 'show transcript table', to answer the following question: What is the size in amino acid residues of the IGLL1 transcript named IGLL1-203? NOTE: Please give your answer as a number, not a word, and do not type the units.arrow_forwardThe gene known to be mutated in cases of Agammaglobulinemia 2 (which is inherited in an autosomal recessive pattern) is the immunoglobulin lambda like polypeptide 1 (IGLL1 ENSG00000128322). What is known about the gene is recorded here: http://www.ensembl.org/Homo_sapiens/Gene/Summary?g=ENSG00000128322;r=22:23573125-23580302 Please navigate to the link above and click 'show transcript table' to answer the following question: What is the NCBI accession number (including the version) of the RefSeq Match for the transcript IGLL1-202? ANSWER: The NCBI accession number (including the version) of the RefSeq Match for the transcript IGLL1-202 is "Blank 1".arrow_forward
- The gene known to be mutated in cases of Agammaglobulinemia 2 (which is inherited in an autosomal recessive pattern) is the immunoglobulin lambda like polypeptide 1 (IGLL1 ENSG00000128322). What is known about the gene is recorded here: http://www.ensembl.org/Homo_sapiens/Gene/Summary?g=ENSG00000128322;r=22:23573125-23580302 Please navigate to the link above to answer the following question: According to the web site above, how many phenotypes is IGLL1 associated with? ANSWER: IGLL1 is associated with Blank ... phenotypes.arrow_forwardThe gene known to be mutated in cases of Agammaglobulinemia 2 (which is inherited in an autosomal recessive pattern) is the immunoglobulin lambda like polypeptide 1 (IGLL1 ENSG00000128322). What is known about the gene is recorded here: http://www.ensembl.org/Homo_sapiens/Gene/Summary?g=ENSG00000128322;r=22:23573125-23580302 Please navigate to the link above and click, 'show transcript table', to answer the following question: What is the size in base pairs of the IGLL1 transcript named IGLL-202?arrow_forwardAn experimental assay for the blood-clotting protein called factorIX is available. A blood sample was obtained from each individual in the following pedigree. The amount of factor IX protein, shown within each symbol on the pedigree, is expressed as a percentage of the average amount observed in individuals who do not carry a mutant copy of the gene.arrow_forward
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