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 1, Problem 13P
Plant agriculture and animal domestication developed independently several times and in different locations in human history. Do a brief Internet search and then list the approximate locations, time periods, and crops developed in three of these agricultural events. What role do you think ideas about heredity may have played in these events?
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A. What traits are controlled by the branching gene and fruitcase gene? And how were they determined to be major players in the development of maize?
B. Teosinte looks like a terrible plant to begin to domesticate for agricultural purposes. What hypothesis is put forth to explain farmers’ early interest in the plant?
C. Often successful domestication of a plant or animal is due to the fact that this involved just a few gene changes. In what situation can changes in just a few genes dramatically change an organism's entire appearance?
D. Who is Norman Borlaug?
A. Dr. Doebley and his team compared the DNA sequence of maize to that of a number of teosinte varieties from throughout Mexico. What did their analysis reveal?
B. Teosinte looks like a terrible plant to begin to domesticate for agricultural purposes. What hypothesis is put forth to explain farmers’ early interest in the plant?
Why plant breeders intend to change the inheritance of crop plants? How plant breeders can change the heredity of crop plants? Explain your answer in briefly.
Chapter 1 Solutions
Genetic Analysis: An Integrated Approach (3rd Edition)
Ch. 1 - 1. Genetics affects many aspects of our lives....Ch. 1 - 2. How do you think the determination that DNA is...Ch. 1 - 3. A commentator once described genetics as “the...Ch. 1 - All life shares DNA as the hereditary material....Ch. 1 - Define the terms allele, chromosome, and gene and...Ch. 1 - 6. Define the terms genotype and phenotype, and...Ch. 1 - 7. Define natural selection, and describe how...Ch. 1 - Describe the modern synthesis of evolution, and...Ch. 1 - What are the four processes of evolution? Briefly...Ch. 1 - Define each of the following terms: a....
Ch. 1 - 11. Compare and contrast the genome, the proteome,...Ch. 1 - With respect to transcription describe the...Ch. 1 - Plant agriculture and animal domestication...Ch. 1 - Briefly describe the contribution each of the...Ch. 1 - If thymine makes up 21% of the DNA nucleotides in...Ch. 1 - What reactive chemical groups are found at the 5...Ch. 1 - Identify two differences in chemical composition...Ch. 1 - What is the central dogma of molecular biology?...Ch. 1 - A portion of a polypeptide contains the amino...Ch. 1 - The following segment of DNA is the template...Ch. 1 - 23. Fill in the missing nucleotides (so there are...Ch. 1 - 24. Suppose a genotype for a protein-producing...Ch. 1 - Prob. 25PCh. 1 - 26. Four nucleic acid samples are analyzed to...Ch. 1 - 27. What is meant by the term homology? How is...Ch. 1 - 28. If one is constructing a phylogeny of reptiles...Ch. 1 - 29. Consider the following segment of...Ch. 1 - 30. Ethical and social issues have become a large...Ch. 1 - 31. In certain cases, genetic testing can identify...Ch. 1 - 32. What information presented in this chapter and...Ch. 1 - 33. It is common to study the biology and genetics...
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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
- Often successful domestication of a plant or animal is due to the fact that this involved just a few gene changes. In what situation can changes in just a few genes dramatically change an organism's entire appearance?arrow_forwardWhen and where did agriculture first arise? What role did genetics play in the development of the first domesticated plants and animals?arrow_forwardOne problem with this line of criticism is that it is difficult to distinguish good forms of manipulating nature from unacceptable ones. Some critics of GMOs argue that we ought to leave species as we find them, and that it is the cross-species transfers of genetic material involved in some GMOs that make them unacceptable. One problem with this objection is that similar transfers have occurred in nature—from basic plant genetics to the long-term patterns of evolution. Please explain what does it meanarrow_forward
- Improving the nutritional value of food has long been one of the goals in agricultural genetics. Crossing different strains of plants and animals followed by generations of artificial selection have yielded some successes, including the development of high-protein maize. The use of gene transfer biotechnology has led to other advances, including the creation of nutritionally enhanced rice to combat vitamin A deficiency and blindness. Researchers are now turning their attention to the nutritional enhancement of animals that are used as food. Scientists are now turning their attention to using gene transfer technology to nutritionally enhance animal foods. Recently, biotechnology was used to produce a sheep with increased amounts of an omega-3 essential fatty acid that plays an important role in the development of the nervous system and, in adults, reduces the risk of coronary artery disease. Once a small number of transgenic animals have been produced, they can be bred by conventional methods to establish a source of nutritionally enhanced meat and milk. The use of biotechnology is presenting consumers with many new choices, which will become more common in the future. Increasingly, we will all have to educate ourselves about the pros and cons of such decisions. On the other hand, how would you explain your preference for meat from animals without higher levels of beneficial fatty acids?arrow_forwardImproving the nutritional value of food has long been one of the goals in agricultural genetics. Crossing different strains of plants and animals followed by generations of artificial selection have yielded some successes, including the development of high-protein maize. The use of gene transfer biotechnology has led to other advances, including the creation of nutritionally enhanced rice to combat vitamin A deficiency and blindness. Researchers are now turning their attention to the nutritional enhancement of animals that are used as food. Scientists are now turning their attention to using gene transfer technology to nutritionally enhance animal foods. Recently, biotechnology was used to produce a sheep with increased amounts of an omega-3 essential fatty acid that plays an important role in the development of the nervous system and, in adults, reduces the risk of coronary artery disease. Once a small number of transgenic animals have been produced, they can be bred by conventional methods to establish a source of nutritionally enhanced meat and milk. The use of biotechnology is presenting consumers with many new choices, which will become more common in the future. Increasingly, we will all have to educate ourselves about the pros and cons of such decisions. How would you explain your decision to eat nutritionally enhanced meat from animals modified by biotechnology?arrow_forwardGenes control thousands of different traits in plants. These genes can be selected for during natural selection (which drives evolution) and artificial selection (which drives domestication of dogs, crops, etc). During the domestication of modern tomato, describe the traits that were and were not selected. In your own words, describe in 2-3 sentences why domesticated tomatoes bought at a grocery store are lackluster compared to heirlooms or wild tomatoes. What are a few genetic and non-genetic traits that control tomato flavor and taste?arrow_forward
- A. What is the wild progenitor of maize and where is it found? B. George Beadle concluded that this plant was the likely ancestor of maize (corn) even though the two plants appear very different. What evidence did Dr. Beadle collect that led to his conclusion? C. How long ago was maize domesticated and what evidence was utilized to determine this? D. Dr. Doebley and his team compared the DNA sequence of maize to that of a number of teosinte varieties from throughout Mexico. What did their analysis reveal?arrow_forwardConsider the following hypothetical gene a plant g&T produces a protein that impacts the stem length. There are two alleles for GT which produces long stem and tea little tea which results in short stint. Which of the following genome types above would have a different pheno type? And what would the phenotype be for the genotype?arrow_forwardThink of and identify a modern-day problem that can be solved by Genetic Engineering. If youwere a scientist, what unique characteristics (at least 3) will be exhibited by the GMO that willsolve the problem? Briefly describe each in 200 words.arrow_forward
- Consider the following hypothetical gene a plant. Gene T produces a protein that impacts stem length. There are two alleles for gene T, T which produces long stems and t which results in short stems. If gene T displays incomplete dominance, which of the following genotypes above would have a different phenotype? and What would the phenotype be for this genotype?arrow_forwardHow can mutations cause changes to the traits? Explain using the following steps:1- DNA 2- Gene 3- Protein 4- Traits We need one explanation for the normal side and one for the mutation side. Can you explain in a few sentences how the change in the structure of the gene affects the function of the corn plant?arrow_forwardA plant breeder wants to use selective breeding to produce corn with short stalks and a high mass of grain.He could use the following varieties of cor, A, Long stalks, high mass of grain, B, Short stalks, low mass of grain or c, Long Stalks, low mass of grain. What would the plant breeder need to do to make sure he always produced corn with a short stem and a high mass of grain? Describe three steps the breeder would use.arrow_forward
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