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 20, Problem 33P
Predict the DNA sequences at the four nodes (branching points) on the cladogram in Fig. 20.18b (p. 681).
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Chapter 20 Solutions
Genetics: From Genes to Genomes, 5th edition
Ch. 20 - Choose the best matching phrase in the right...Ch. 20 - When an allele is dominant, why does it not always...Ch. 20 - A population with an allele frequency p of 0.5 and...Ch. 20 - Prob. 4PCh. 20 - Which of the following populations are at...Ch. 20 - A dominant mutation in Drosophila called Delta...Ch. 20 - A large, random mating population is started with...Ch. 20 - Prob. 8PCh. 20 - Prob. 9PCh. 20 - Two hypothetical lizard populations found on...
Ch. 20 - It is the year 1998, and the men and women sailors...Ch. 20 - Prob. 12PCh. 20 - In 1927, the ophthalmologist George Waaler tested...Ch. 20 - Prob. 14PCh. 20 - A gene has two alleles A frequency = p and a...Ch. 20 - Some people can taste the bitter compound...Ch. 20 - Androgenetic alopecia pattern baldness is a...Ch. 20 - Why is the elimination of a fully recessive...Ch. 20 - Tristan da Cunha is a group of small islands in...Ch. 20 - Small population size causes genetic drift because...Ch. 20 - Prob. 21PCh. 20 - A mouse mutation with incomplete dominance t =...Ch. 20 - In Drosophila, the vestigial wings recessive...Ch. 20 - Prob. 24PCh. 20 - You have identified an autosomal gene that...Ch. 20 - In Europe, the frequency of the CF allele causing...Ch. 20 - An allele of the G6PD gene acts in a recessive...Ch. 20 - Explain why evolutionary biologists monitor...Ch. 20 - What is the most straightforward evidence at the...Ch. 20 - In March 2013, the American Journal of Human...Ch. 20 - If you go back 40 generations into your biological...Ch. 20 - In Fig. 21.17, to what part of the world does...Ch. 20 - Predict the DNA sequences at the four nodes...Ch. 20 - A cladogram not drawn to scale for the taxonomic...Ch. 20 - As noted in Fig. 21.22, humans now living in...
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- By using those sequences to explain the tiling path for each sequencearrow_forwardWhat is a homologous pair (also called a tetrad)?arrow_forwardUsing the picture below of the triangles and pentagon answer this question: 2.a) Identify potential Synapomorphies aka "Shared Derived Characters": To pick informative characters, look for things that are shared between two or more members of the ingroup. Give a DETAILED description of each of the characters you are going to use. This is important, as often two characters are very similar (see example on the next page). Remember, they should be binary (i.e., one of two states--black or white, two eyes or four eyes). They should not be subjective (i.e., long vs. short). You can always identify the ancestral state of your character by asking if the outgroup shows the character of interest. Answer this completely and correctly. Do not use previous answers/versions of answers.arrow_forward
- Please explain why the order is 3–1-4-2 and not another way, thank you so much. Question is in the image.arrow_forwardCompare the two graphs in Figure 1-17. What information does the second graph illustrate? What possible explanation can you give for the differences shown in the two graphs?arrow_forwardPopulation genetics of Prairie blazingstar in Kansas A researcher surveys genetic variation in the Skdh (shikimate dehydrogenase) gene from a Kansas population of prairie blazingstar plants (Liatris pychnostachya). She obtains the data in the table below. There are two alleles, Fast (F) and Slow (S), named for their position in the electrophoresis gel. Values in the table are number of individuals with each genotype. FF 50 FS 200 SS 150 What is the frequency of the SS genotype in this population? (The observed genotype from the data.) Report your answer to the nearest 0.001. Type your answer.... - Using these data, calculate the frequency of the Fallele. Report your answer to the nearest 0.001. Type your answer... D -000 DO What is the expected genotype frequency for the FF genotype, assuming this population is in Hardy-Weinberg equilibrium? Report your answer to the nearest 0.001. Type your answer...arrow_forward
- 6.4 Write genotypes correctly to indicate if two genes are linked or not and if linked, the arrangement of the alleles on homologues.arrow_forwardIn 1988, neurologists in Australia reported the existence of identical twins who had developed myoclonic epilepsy in their teens. One twin remained only mildly affected by this condition, but the other twin later developed other symptoms of full-blown MERRF, including deafness, ragged red fibers, and ataxia (loss of the ability to control muscles). Explain the phenotypic dissimilarity in these identical twins.arrow_forwardDiagrammatic representation of monohybrid cross?arrow_forward
- The most common allele of the β chain of hemoglobin in humans, ???,HbA, has glutamic acid at the sixth position. Two different amino acid substitutions at the sixth position produce two variants, ???HbS and ???,HbC, of the sickle‑cell allele. The ???HbS allele occurs when valine is substituted for glutamic acid, and the ???HbC allele occurs when lysine is substituted for glutamic acid. To answer the question, refer to the amino acid table. Match the class of amino acid and the chemical property to each possible amino acid. Not all answers will be placed.arrow_forward3.23 The following pedigree shows the inheritance of a reces- sive trait. Unless there is evidence to the contrary, assume that the individuals who have married into the family do not carry the recessive allele. What is the chance that the offspring of the following matings will show the trait: (a) III-1 × III-12; (b) II-4 × III-14; (c) III-6 × III-13; (d) IV-1 X IV-2? I || III 2 2 3 4 LO 5 3 6 7 8 1 1 2 9 10 2 5 6 7 8 11 12 13 14 15 16 17arrow_forwardIn the 1800s, a man with dwarfism who lived in Utah produced a large number of descendants: 22 children, 49 grandchildren, and 250 greatgrandchildren (see the illustration of a family pedigree to the right), many of whom also exhibited dwarfism (F. F. Stephens. 1943. Journal of Heredity 34:229–235). The type of dwarfism found in this family is called Schmid-type metaphyseal chondrodysplasia, although it was originally thought to be achondroplastic dwarfism. Among the families of this kindred, dwarfism appeared only in members who had one parent with dwarfism. When one parent exhibited dwarfism, the following numbers of children were produced. Q. Use chi-square tests to determine if the numbers of children with each phenotype in family C (1 with normal stature, 6 with dwarfism) and in family D (6 with normal stature, 2 with dwarfism) are significantlydifferent from the numbers expected on the basis of your proposed mode of inheritance. How would you explain these deviations from the…arrow_forward
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