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 16, Problem 20P
Substantial fractions of the genomes of many plants consist of segmental duplications; for example, approximately
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After numerous herbaceous plants had their genomes sequenced, a woody plant finally joined the group, Populus trichocarpa (black cottonwood). Give and explain three reasons why this specific tree was chosen.
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Chapter 16 Solutions
Genetic Analysis: An Integrated Approach (3rd Edition)
Ch. 16 - You have discovered a new species of Archaea from...Ch. 16 - 16.2 Repetitive DNA poses problems for genome...Ch. 16 - 16.3 When the whole-genome shotgun sequence of the...Ch. 16 - How do cDNA sequences facilitate gene annotation?...Ch. 16 - 16.5 How do comparisons between genomes of related...Ch. 16 - 16.6 You are designing algorithms for the...Ch. 16 - 16.7 You have sequenced a region of the Bacillus...Ch. 16 - You have just obtained 100-kb of genomic sequence...Ch. 16 - 16.9 The human genome contains a large number of...Ch. 16 - Based on the tree of life in Figure 16.12, would...
Ch. 16 - 16.11 When comparing genes from two sequenced...Ch. 16 - 16.12 What is a reference genome? How can it be...Ch. 16 - Prob. 13PCh. 16 - Prob. 14PCh. 16 - 16.16 Consider the phylogenetic tree below with...Ch. 16 - You have isolated a gene that is important for the...Ch. 16 - 16.18 When the human genome is examined, the...Ch. 16 - Symbiodinium minutum is a dinoflagellate with a...Ch. 16 - Substantial fractions of the genomes of many...Ch. 16 - 16.21 A modification of the system, called the ...Ch. 16 - 16.22 A substantial fraction of almost every...Ch. 16 - 16.23 In the globin gene family shown in Figure ,...Ch. 16 - You are studying similarities and differences in...Ch. 16 - In conducting the study described in Problem 24,...Ch. 16 - Prob. 26PCh. 16 - Prob. 27PCh. 16 - Prob. 28PCh. 16 - Prob. 29P
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Not all inherited traits are determined by nuclear genes (i.e., genes located in the cell nucleus) that are expressed during the life of an individual. In particular, maternal effect genes and mitochondrial DNA are notable exceptions. With these ideas in mind, let’s consider the cloning of a sheep (e.g., Dolly). A. With regard to maternal effect genes, is the phenotype of such a cloned animal determined by the animal that donated the enucleatedegg or by the animal that donated the somatic cell nucleus? Explain.arrow_forwardAlthough DNA transposons are abundant in the genomes of multicellular eukaryotes, class 1 elements usually make up the largest fraction of very large genomes such as those from humans (~2500 Mb), maize (~2500 Mb), and barley (~5000 Mb). Given what you know about class 1 and class 2 elements, what is it about their distinct mechanisms of transposition that would account for this consistent difference in abundance?arrow_forwardGenome duplications outside plants are relatively rare; and have only occurred a few times throughout evolutionary history. When they do occur, they tend to coincide with a change in a geological period; which is also a time of upheaval and natural change (ie. the Cretaceous–Paleogene boundary which was most likely caused by an asteroid that wiped out three-quarters of all species of life, including the dinosaurs). Which of the following statements is TRUE? A. Genome duplications are more common in plants because plants can self-fertilize B. Genome duplications are usually strongly selected against, because of problems with meiosis C. All of the statements are true D. Genome duplications allow for increased variation for selection to act on, which is beneficial in stressful environmentsarrow_forward
- The fruit fly Drosophila melanogaster has about 2 x 10^8 base pairs of DNA per haploid genome, of which about 75% in nonrepeated DNA. The DNA is distributed among four pairs of homologous chromosomes, which have a total of about 5,000 visible bands when in polytene forms in the salivary gland. The number of genes initially estimated from mutational studies was also about 5,000 but recent DNA sequencing studies suggest that the gene number may be somewhat higher. a. Why was it tempting to speculate that each band corresponds to a single gene? What does this suggest about the number of different proteins Drosophila can make? Does that seem like a reasonable number to you? b. Assuming all the nonrepeated DNA is uniformly distributed in the chromosomes, how much nonrepeated DNA (in base pairs) is there in average band?arrow_forwardIf you wanted to analyze the size and abundance of the HOAP protein in an extract from a Drosophila animal that you think may be mutant for the HOAP gene, what method could you use to target your analysis specifically to the HOAP protein in that extract?arrow_forwardTraditional gene mapping has been applied successfully to a variety of organisms including yeast, fungi, maize, and Drosophila. However, human gene mapping has only recently shared a similar spotlight. What factors have delayed the application of traditional gene-mapping techniques in humans?arrow_forward
- As a molecular biologist and horticulturist specializing in snapdragons, you have decided that you need tomake a genomic library to characterize the flowercolor genes of snapdragons.a. How many genomic equivalents would you like tohave represented in your library to be 95% confident of having a clone containing each gene inyour library?arrow_forwardAPOE gene has been found to be a major contributor to sporadic Alzheimer's disease (AD), by acting as an age-of-onset modifier for the common relatively late-onset forms of the disease. Among four alleles causing early onset of AD, the epsilon4 allele (APOE4) disrupts this function. If you generate transgenic monkeys in which the normal allele of APOE gene is knocked out, what phenotype will you expect for those knockout monkeys? A. The APE mRNA expression will be completely suppressed. B. They slow down the development of AD. C. They develop AD early. D. They don't show any AD symptom.arrow_forwardIn contrast with the genomic manipulations of animals and plants described in this chapter, human genetherapy is directed specifically at altering the genomes of somatic cells rather than germ-line cells.Why couldn’t or wouldn’t medical scientists try to alter the genome of human germ-line cells?arrow_forward
- A paper hypothesizes that white flowers are unable to produce anthocyanins (purple pigments) because they lack a functional “A” protein. However, it is also possible that an unknown gene is responsible for the lack of anthocyanins. Now that they have isolated DNA sequences of the “A” allele, design an experiment to use these DNA sequences to distinguish between these two hypotheses.arrow_forwardGene A, which encodes alcohol dehydrogenase, is labeled with a red fluorophore in a FISH experiment with one chromosome of a homologous pair, with results shown below. Gene B is labeled in green and encodes Notch2NL, a gene which may help to explain brain size differences between humans and chimpanzees, and which with increased dosage, may lead to a condition referred to as macrocephaly (enlarged head circumference sometimes associated with learning disabilities). What can you infer about these two genes given the results seen below?arrow_forwardIn DNA-hybridization experiments on six species of plants in the genus Vicia, DNA was isolated from each of the six species, denatured by heating, and sheared into small fragments (W. Y. Chooi. 1971. Genetics 68:213–230). In one experiment, DNA from each species and from E. coli was allowed to renature. The graph shows the results of this renaturation experiment. Q. Notice that, for the Vicia species, the rate of renaturation is much faster in the first hour and then slows down. What might cause this initial rapid renaturation and the subsequent slowdown?arrow_forward
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Genome Annotation, Sequence Conventions and Reading Frames; Author: Loren Launen;https://www.youtube.com/watch?v=MWvYgGyqVys;License: Standard Youtube License