Concepts of Genetics (11th Edition)
Concepts of Genetics (11th Edition)
11th Edition
ISBN: 9780321948915
Author: William S. Klug, Michael R. Cummings, Charlotte A. Spencer, Michael A. Palladino
Publisher: PEARSON
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Chapter 25, Problem 33ESP

Recent reconstructions of evolutionary history are often dependent on assigning divergence in terms of changes in amino acid or nucleotide sequences. For example, a comparison of cytochrome c shows 10 amino acid differences between humans and dogs, 24 differences between humans and moths, and 38 differences between humans and yeast. Such data provide no information as to the absolute times of divergence for humans, dogs, moths, and yeast. How might one calibrate the molecular clock to an absolute time clock? What problems might one encounter in such a calibration?

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Chapter 25 Solutions

Concepts of Genetics (11th Edition)

Ch. 25 - The genetic difference between two Drosophila...Ch. 25 - The use of nucleotide sequence data to measure...Ch. 25 - The ability to taste the compound PTC is...Ch. 25 - Prob. 7PDQCh. 25 - What must be assumed in order to validate the...Ch. 25 - In a population where only the total number of...Ch. 25 - Determine whether the following two sets of data...Ch. 25 - If 4 percent of a population in equilibrium...Ch. 25 - Consider a population in which the frequency of...Ch. 25 - If the initial allele frequencies are p = 0.5 and...Ch. 25 - Under what circumstances might a lethal dominant...Ch. 25 - Assume that a recessive autosomal disorder occurs...Ch. 25 - One of the first Mendelian traits identified in...Ch. 25 - Describe how populations with substantial genetic...Ch. 25 - Achondroplasia is a dominant trait that causes a...Ch. 25 - Prob. 19PDQCh. 25 - Prob. 20PDQCh. 25 - A botanist studying water lilies in an isolated...Ch. 25 - A farmer plants transgenic Bt corn that is...Ch. 25 - In an isolated population of 50 desert bighorn...Ch. 25 - To increase genetic diversity in the bighorn sheep...Ch. 25 - What genetic changes take place during speciation?Ch. 25 - Some critics have warned that the use of gene...Ch. 25 - A form of dwarfism known as Ellisvan Creveld...Ch. 25 - Prob. 28ESPCh. 25 - What are the two groups of reproductive isolating...Ch. 25 - The original source of new alleles, upon which...Ch. 25 - A number of comparisons of nucleotide sequences...Ch. 25 - Shown below are two homologous lengths of the...Ch. 25 - Recent reconstructions of evolutionary history are...Ch. 25 - Prob. 34ESP
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