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 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?
The flea beetle (P. nemorum) can survive on multiple types of plants, including radishes, eggplants
and tomatoes. There is a dominant gene allele that allows P. nemorum to live on Bittercress (B.
vulgaris). Radishes, eggplants and tomatoes all have some phenotypes that resist damage by P.
nemorum and thus survive better.
There are many different biological scenarios that can be modeled by PopG with the above
information. Select alternative hypothesis that can be modeled by a one locus, two allele program
like PopG.
Select one or more:
O A resistant-flea beetle allele in radishes will change its allele frequency in the presence of the flea beetle (P. nemorum).
O Tomatoes and radishes will grow better without the flea beetle in the environment.
O The Ballele allowing flea beetle (P. nemorum) growth on Bittercress, will become change its frequency in an environment with
predominant Bittercress.
Fruit scientists are trying to determine the role of the pectinase (p) gene in a plant’s ability to tolerate cold conditions. The table shows each of three possible fruit tree genotypes and the percentage of fruit produced at different temperature ranges.
Which of the following statements best describes the evolutionary concept illustrated by this example?
A. Homozygous genotypes increase fitness in a population.
B. Hybrid plants are known to have a disadvantage over homozygous genotypes.
C. Natural selection selects against the recessive gene and for the dominant gene.
D. Certain phenotypic variations can significantly increase fitness of the organism in particular environments.
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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