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 11, Problem 10P
In numerous population studies of spontaneous mutation, two observations are made consistently:
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Chapter 11 Solutions
Genetic Analysis: An Integrated Approach (3rd Edition)
Ch. 11 - 11.1 Identify two general ways chemical mutagens...Ch. 11 - 11.2 Nitrous acid and (BU) alter DNA by different...Ch. 11 - 11.3 What is the difference between a transition...Ch. 11 - What is the difference between a synonymous...Ch. 11 - 11.5 UV irradiation causes damage to bacterial...Ch. 11 - Ultraviolet (UV) radiation is mutagenic.
What...Ch. 11 - Researchers interested in studying mutation and...Ch. 11 - The effect of base - pair substitution mutations...Ch. 11 - Describe the purpose of the Ames test. How are...Ch. 11 - 11.10 In numerous population studies of...
Ch. 11 - 11.11 Two different mutations are identified in a...Ch. 11 - What is the phenotype effect of inserting a Ds...Ch. 11 - 11.13 Answer the following questions concerning...Ch. 11 - Several types of mutation are identified and...Ch. 11 - 11.15 A sample of the bacterium is exposed to...Ch. 11 - 11.16 A strain of is identified as having a null...Ch. 11 - Describe the difference between DNA transposons...Ch. 11 - 11.18 How are flanking direct repeat sequences...Ch. 11 - 11.19 Using the adeninethymine base pair in this...Ch. 11 - The partial amino acid sequence of a wild-type...Ch. 11 - Prob. 21PCh. 11 - 11.22 Many human genes are known to have homologs...Ch. 11 - The fluctuation test performed by Luria and...Ch. 11 - In this chapter, three features of genes or of DNA...Ch. 11 - Briefly compare the production of DNA double -...Ch. 11 - During mismatch repair, why is it necessary to...Ch. 11 - 11.27 Following the spill of a mixture of...Ch. 11 - 11.28 In an Ames test using Salmonella bacteria a...Ch. 11 - A wild - type culture of haploid yeast is exposed...Ch. 11 - A fragment of a wild - type polypeptide is...Ch. 11 - Prob. 31PCh. 11 - Alkaptonuria is a human autosomal recessive...Ch. 11 - 11.33 In an experiment employing the methods of...Ch. 11 - Using your knowledge of DNA repair pathways choose...Ch. 11 - 11.35 Ataxia telangiectasia is a human inherited...Ch. 11 - A geneticist searching for mutations uses the...Ch. 11 - 11.37 In a mousebreeding experiment a new mutation...Ch. 11 - 11.38 Considering the Dumbo mutation in a Problem,...Ch. 11 - 11.39 Thinking back to the discussion of...Ch. 11 - 11.40 Common baker’s yeast () is normally grown at...Ch. 11 - 11.41 The two gels illustrated below contain...
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- Forward Genetics Analysis uses a variety of beneficial approaches to identify never before described genes. For each of the following approaches or outcomes, briefly (maximum 2 sentences) discuss in your own words, their purpose in Forward Genetics Analysis. c) Mendelian ratios d) Genetic screenarrow_forwardWhen an Avidian (with a genome size of 50 sites) reproduces with a 10% per site mutation rate, and if the number of mutations per genome is Poisson distributed, then what is the most likely outcome? Possible answers: 4 per genome is most likely, 5 per genome is most likely, 4 mutations per genome and 5 mutations per genome are equally likely, A number other than 4 and/or 5 mutations per genome is most likelyarrow_forwardThe table below shows different types of mutations in different positions in four genes. Choose the letter (A to E), from the drop-down menu, that represents the most likely type of protein that will be produced from each of these mutated genes. A: completely normal protein B: functional protein with ONE amino acid different from normal C: non-functional protein with ONE amino acid different from normal D: non-functional protein with MANY amino acids different from normal E: no protein at all Answer Type of mutation Position of mutation in gene (A, B, C, D, or E) before the part of the gene that specifies the active site of the enzyme 2 base pair insertion Inonsense immediately before the stop codon in the part of the gene that specifies the active site of the enzyme silent 1 base pair insertion in an intronarrow_forward
- Achondroplasia is a rare form of dwarfism. It is caused by anautosomal dominant mutation within a single gene. Among1,422,000 live births, the number of babies born with achondroplasiawas 31. Among those 31 babies, 18 of them had one parentwith achondroplasia. The remaining babies had twounaffected parents. What is the mutation frequency for this disorderamong these 1,422,000 babies? What is the mutation rate forachondroplasia?arrow_forwardIf every human gamete contains approximately 30,000 genes and if the forward mutation rate is between 1 x 10-5 and 1 x 10-6 new mutations per gene per generation, what is the average number of new mutations per gamete per generation?arrow_forwardIn your attempts to identify a genetic basis for rheumatoid arthritis in humans, you have DNA samples from three large unrelated families in which individuals with varying severity of rheumatoid arthritis are found. From your analysis of various SNPs, you find that the same four unlinked loci consistently show a correlation with the most severe cases from all three families. Based on your observations, which of the following hypotheses best describes the genetic control of rheumatoid arthritis? ос Rheumatoid arthritis is the result of phenocopy by the environment Different genes regulate the disease in different families Rheumatoid arthritis is controlled by a single X-linked recessive trait Rheumatoid arthritis is controlled by polygenic (or quantitative) traits Rheumatoid arthritis is controlled by a single autosomal dominant traitarrow_forward
- Why is a random mutation more likely to be deleterious than beneficial?arrow_forwardUntil very recently, the fitness of an individual getting familial retinoblastoma was zero, and if the frequency of babies with the inherited disease is 1/20000, what is the best estimate of the mutation rate of the wild type allele to the non-functional form?arrow_forwardHow can you use this piece of information to help you explain to your friends what is the significance of mutations in the emergence of new genetic properties (alleles) that may result (or not) in new phenotypic characteristics? (Recall that not all SNPs affect phenotype.)arrow_forward
- (6) Which of the following descriptions regarding human genetic variations is correct? A) Unlike rare variants, common variants have a frequency >5% and usually indicate low penetrance risk loci. B) Copy number variations frequently lead to decrease in gene expression. C) Both linkage analysis and association studies identify causal risk genetic variants. D) SNP is a common form of structural variation.arrow_forward(7) In a family-based alcohol use disorder genetic study, a total of 50 families, each with a pair of siblings, were recruited. The result showed that 12 families have the 1" siblings with marijuana dependence and the 2nd siblings without the disorder, while another 11 families are opposite (i.e. the 1st siblings without the disorder but the 2nd siblings with the disorder). In contrast, 20 families have both siblings exhibiting the disorder and another 17 families have both siblings without the disorder. What kind of heritability can you calculate using this family study and what is the heritability value for alcohol use disorder? A) Narrow-sense heritability, approximately 88% B) Narrow-sense heritability, approximately 44% C) Broad-sense heritability, approximately 88% D) Broad-sense heritability, approximately 44%arrow_forwarda) What is gene mutation? and what are the causes and consequences of gene mutation? b)With illustrations, write concisely on gene mutation with emphasis on (i) Point Mutation (ii) Silent Mutation (iii) Frameshift Mutationarrow_forward
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