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Genetics: From Genes to Genomes, 5th edition
5th Edition
ISBN: 9780073525310
Author: Leland H. Hartwell, Michael L. Goldberg, Janice A. Fischer, Leroy Hood, Charles F. Aquadro
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 21, Problem 12P
Compare and contrast the use of SNP genotyping: (i) in the positional cloning of Mendelian disease genes, (ii) in direct QTL mapping, and (iii) in GWAS.
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Students have asked these similar questions
How might the Hardy Weinberg relationship be used to evaluate a new SNP genotyping technology using multiple individuals from a population? Group of answer choices
a)If genotypes match the reference genome, the technology is sound. Otherwise, the technology may have problems accurately calling SNPs.
b)If observed phenotypes follow Hardy Weinberg, the technology is sound. Otherwise, the technology may have problems accurately calling SNPs.
c)If genotypes and allele frequencies follow Hardy Weinberg, the technology is sound. Otherwise, the technology may have problems accurately calling SNPs.
d)None of the above
ISSR is generally a dominant STS DNA marker. Nonetheless, with validated experimental evidence (e.g. laboratory and population genetics data), the marker can be used in codominance marker genotyping. Briefly explain each case below:
a) Codominant marker targets specific locus and reveals allelic variations in that locus among DNA samples.
b) Dominant marker: primers can complement other repeat sequences or in multiple loci thereby non-specificity in sampled genomes.
Select all that apply: A SNP (single nucleotide polymorphism) is similar to an STR (short tandem repeat) in that:
a) an individual can have many different copies of specific SNP or STR
b) they both cause diseases
c)they are sequences that have many possible variants
d) an individual has one copy of this region of the genome from each parent.
Chapter 21 Solutions
Genetics: From Genes to Genomes, 5th edition
Ch. 21 - Choose the best matching phrase in the right...Ch. 21 - Prob. 2PCh. 21 - How can each of the following be used in...Ch. 21 - Which of the following statements would be true of...Ch. 21 - Prob. 5PCh. 21 - Prob. 6PCh. 21 - Prob. 7PCh. 21 - Human geneticists have found the Finnish...Ch. 21 - Prob. 9PCh. 21 - Prob. 10P
Ch. 21 - In a certain plant, leaf size is determined by...Ch. 21 - Compare and contrast the use of SNP genotyping: i...Ch. 21 - Prob. 13PCh. 21 - Prob. 14PCh. 21 - Canavan disease, caused by homozygosity for a...Ch. 21 - Prob. 16PCh. 21 - Prob. 17PCh. 21 - Consider the triangle diagram shown in Fig. 21.15....Ch. 21 - Prob. 19PCh. 21 - Prob. 20PCh. 21 - Suppose a GWAS investigation found a particular LD...Ch. 21 - In domesticated dogs, size has a high...Ch. 21 - Prob. 23P
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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_forwardUsing the information provided below, which of the individuals A and B have: i) Genotypic change ii) Phenotypic change iii) Genotypic and phenotypic change X is the partial CDNA sequence of the normal CFTR gene. Use this to determine which DNA sequence (A &B) is the DNA extracted from a patient with and without disease. X) ATGGCGGTCACTCGGCAATTTCCCTGGGCTGTACAAACATGGTATGACTCTCTTGGAGCAATAAACA Met. A V IR Q F P WA V Q T W Y D S L GAI .. A) ATGGCGGTCACTCGGCAATTTCCCTGGGCTGTACAAACAGGTATGACTCTCTTGGAGCAATAAACAA Met. B) ATGGCGGTCACTCGGCAATTTCCCTGGGCTGTACAAACTTGGTATGACTCTCTTGGAGCAATAAACA Met. Since this is a complementary DNA (CDNA) The nucleotide "T" can be directly replaced with U to get the mRNA strand. Example: ATG is AUG, TCA is UCA etc Second letter G UAU UCU c Phe UCc UGU UUC U UUA UAC JTyr UGCCYS Ser UCA UCG UAA Stop UGA Stop A UAG Stop UGG Trp UUG Leu G. CUU CCU CCC Pro CAU CAC Hi. CAA CAGJ CGU CGC CUC CUA Leu CCA Arg CGA Gin CUG CCG CGG AUU ACU ACC ACA AUG Met ACG LAsn AGUser AAC AUC…arrow_forwarda) what feature of the genome is likely to be located between the two LD blocks that allows scientists to visualize them as seperate blocks? b) Even though the fugure analyzes nine different SNPs, genotyping just two of se SNPs would allow you to predict the genotype of almost everyone in the population. Explain why this limited genotyping has predictive value. c) When obtaining the data allowing construction of triangular diagrams, have researchers typically genotyped common SNPs or rare SNPs? Explain.arrow_forward
- Why is QTL mapping in human genetic diseases important?arrow_forwardTraditional Sanger sequencing has largely been replaced in recent years by next-generation and third-generation sequencing approaches. Describe advantages of these sequencing methods over first-generation Sanger sequencing.arrow_forwardHi, I would like to know which program is used for the graphical presentation of the results of a meta-analysis of genome-wide linkage scans?arrow_forward
- which of the following statements about genome-wide association studies (GWAS) is correct? A) involves scanning the genomes of thousands of unrelated individuals with a particular mutation and comparing them with the genomes of individuals who do not have the mutation. B) involves scanning the genomes of thousands of unrelated individuals with a particular disease and comparing them with the genomes of individuals who do not have the disease C) attempt to identify genes that influence mutation risk D) attempt to identify genes that influence disease risk E) involves scanning the genomes of thousands of unrelated individuals with a particular disease and comparing them with the genomes of individuals who do not have the disease and GWAS attempt to identify genes that influence disease riskarrow_forwardHow can linkage disequilibrium mapping sometimes provide a much higher resolution of gene location than classical linkage mapping?arrow_forwardBriefly explain how Genome Wide Association Studies (GWAS) are done. Then, using this example of a Manhattan Plot explain what each of the X-axis and the Y-axis signifies in a GWAS.arrow_forward
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